USEFUL DRUGS PREPARED UNDER THE DIRECTION AND SUPERVISION OF THE COUNCIL ON PHARMACY AND CHEMISTRY OF THE AMERICAN MEDICAL ASSOCIATION A List of Drugs Selected to Supply the Demand for a Less Extensive Materia Medica and Especially to Serve as a Basis for the Teaching of Materia Medica and Thera- peutics, and for Examinations on These Subjects by State Licensing Boards, with a Brief Discussion of Their Actions, Uses and Dosage. Sixth Edition PRESS OF THE AMERICAN MEDICAL ASSOCIATION 535 North Dearborn Street Chicago 1923 [Authority to use for comment the Pharmacopeia of the United States of America, ninth decennial revision, in this volume, has been granted by the Board of Trustees of the United States Pharmacopeial Convention, which Board of Trustees is in no way responsible for THE ACCURACY OF ANY TRANSLATION OF THE OFFICIAL WEIGHTS AND MEASURES, OR FOR ANY STATEMENT AS TO THE STRENGTH OF OFFICIAL PREPARATIONS.] Copyright, 1923 American Medical Association PREFACE TO SECOND EDITION 1916 It has long been recognized that the multiplicity of drugs and preparations of drugs presented to the attention of the medical profession is an evil. Leaving out of account the articles described in the National Formulary and the vast number described in dispensatories and similar unofficial com- pilations, the number of drugs and preparations described in the Pharmacopeia alone is far too large for intelligent practical use. Of even greater importance is the well-known fact that a considerable proportion of pharmacopeial drugs and preparations are superfluous or worthless. Repeated attempts to eliminate such articles from the Pharmacopeia have failed because they have uniformly encountered the objection that the articles or preparations are used by some physicians and therefore should be recognized and authori- tatively defined. In the preface to the last edition of his “Text-Book of Pharmacology and Therapeutics,” Cushny announces that the space devoted to many of the less important and less reliable drugs has been much curtailed, that many have been omitted altogether from consideration, and that this is in accordance with the general trend of medical progress and further that therapeutics would probably not have suffered from an even more drastic selection. He further says: “For as long as he [the medical student] has to learn the supposed virtues of a host of obscure substances, he will tend to use them in practice, even if only tentatively. This in turn necessitates their inclusion in the pharmacopeias, which again gives them some standing and perpetuates them as subjects of teaching and examination. If examiners would break this vicious circle, they would render the sub- ject of pharmacology more attractive to him. There is no question that the insistence on numberless preparations of drugs of questionable value has discouraged interest in therapeutics.” Efforts were made by the Council on Medical Education of the American Medical Association and the Confederation of State Examining and Licensing Boards to restrict instruc- tion and examination in materia medica to. the more impor- tant drugs, and this suggested the desirability of selecting a fundamental list of drugs with which all medical students and practitioners might be expected to be familiar and to which, therefore, state examining and licensing boards might largely or entirely confine their examinations in materia medica. A list prepared by the Council on Medical Education and the National Confederation of State Medical Examining USEFUL DRUGS and Licensing Boards was taken as a basis by the Council on Pharmacy and Chemistry, and, after various revisions, more or less guided by numerous criticisms and suggestions from teachers of materia medica, deans of medical schools, secretaries and members of state medical examining ana licensing boards, and other members of th'e medical profes- sion, was published in a preliminary form under the title ‘‘Useful Remedies.” After still further revision in the light of advice and information elicited through this preliminary publication, the first edition of the present volume was pub- lished under the title “A Handbook of Useful Drugs.” This little work presented a brief but practical discussion, from the modern point of view, of the drugs which remained after the winnowing and sifting process above described. It was offered as a text on which teachers of materia medica and therapeutics might base their instruction and state examining boards their examinations. In the words of the preface to the first edition, it was “confidently predicted that an intel- ligent and critical use of these selected drugs will prove their general sufficiency and show that many drugs now discussed in textbooks are superfluous and that many newly discovered or widely exploited proprietary preparations have -no. advantage over those contained in this book.” This pre- diction has been more and more justified since the original publication in 1913. A number of medical schools and state medical examining and licensing boards have taken “Useful Drugs” as a basis for their instruction and examinations in materia medica. As the time of publication of the ninth revision of the U. S. Pharmacopeia and the fourth edition of the National Formulary coincided with the preparation of this edition of “Useful Drugs,” the changes in the requirements of these two official books of standards have naturally been incorporated in this volume. PREFACE TO THIRD EDITION 1917 The only important changes from the 1916 edition consist in the addition of Theophylline and of Antimeningococcus Serum, which, appeared to the Council of sufficient therapeutic importance to be counted among “Useful Drugs”; and the omission of Dilute Hydrocyanic Acid and of Diacetylmor- phin (Heroin) Hydrochlorid. The following reasons prompted the Council to order these deletions: Dilute hydrocyanic acid was admitted to “Useful Drugs” because of its importance as a poison. This is no longer a sufficient justification for its inclusion, since it has become practically obsolete as a remedial agent. The Council there- fore directed its omission from future editions of “Useful Drugs.” Heroin was included in “Useful Drugs” because of its extensive use in coughs, etc. This use originated largely because of claims, no longer accepted, that heroin was a safe drug, especially from the habit producing standpoint, as well as on account of other claimed advantages which further work has failed to confirm. The Council holds that heroin has no advantage over mor- phin; that it shares every disadvantage of morphin; and that, on the whole, its introduction has been harmful, in that it furnished a specious means on the one hand for avoiding the well founded popular fears of morphin by substituting another habit-forming drug. While heroin undoubtedly accomplishes whatever mor- phin accomplishes, and in that sense may be considered as a useful drug, it does not deserve a place in the selected list that is authorized by the Council. PREFACE TO FOURTH EDITION 1920 The present revision involves a few additions and deletions; also some minor changes in the descriptions. These changes have been made in a consistent endeavor to emphasize espe- cially the information that would be of most value in med- ical practice. In a few cases—the local anesthetics, for instance—the articles have been practically rewritten. The common and convenient nonproprietary names of albutannin, arsphenamin, barbital, neoarsphenamin and pro- cain have been adopted in place of the monopolistic and nondescriptive proprietary titles; and the nonproprietary name cinchophen in the place of the cumbersome pharma- copeial term, phenylcinchoninic acid. The following drugs have been omitted: Ammonium acetate: As our knowledge of this drug has developed, its efficacy has become so doubtful that it no longer deserves a place in a list of selected drugs. Lobelia: The use of this drug is so restricted that it does not seem to merit a place in this list. Novatophan: This does not seem to have established suf- ficient advantage over cinchophen to entitle it to separate notice. Sodium arsanilate: As the use of this drug is justified only in the African sleeping sickness, it has little practical interest in this country. Its toxicity makes it an undesirable arsenical. The following drugs have been admitted: Argyrol type of silver preparations: The difference between the argyrol and protargol types is such as to render separate descriptions desirable. Chloramin-T and Dichloramin-T: These have achieved sufficient importance to deserve admission to the list. Incidental mention has also been made in the descriptions of a few drugs which, while useful, are rather minor modi- fications, and therefore not of sufficient importance to deserve separate titles. Instances of such are emetin-bismuth iodid, mentioned under emetin; mercury benzoate and succinimid, mentioned with the mercury salicylate; and alypin, holocain and tropacocain, under cocain. PREFACE TO FIFTH EDITION 1921 In the present edition some revision of the text was made in the endeavor to keep Useful Drugs abreast of the times and to make it of increased value to physicians and medical students. The last edition contained, under argenti proteinas, a description of silver protein preparations of the protargol type and of the argyrol type. In the present edition these appear, respectively, under the nonproprietary names protargin fortius and protargin mite, which have been selected by the Council on Pharmacy and Chemistry for these two classes of silver preparations. The following drugs have been omitted: Bismuth Subsalicylate: This was omitted because it appears to have no advantage over other bismuth preparations. Citrated Caffein: The only advantage of this preparation over caffein itself is its greater solubility which is slight. Hydrastinin Hydrochlorid: This was deleted because the expectations as to its value have not been fulfilled. Ichthyol: This drug was introduced about forty years ago by Unna, who stated that it was of value in the treatment of various skin diseases. Unna attributed to ichthyol the capacity of causing vasoconstriction and an antiseptic action. He also attributed to the drug the property of producing keratiniza- tion. For a time ichthyol enjoyed an extraordinary vogue, especially among dermatologists. A careful study of the lit- erature fails to confirm the claims made by Unna; ichthyol lacks all the properties given (by him as a basis for its use. A letter of inquiry sent to a list of dermatologists, gynecolo- gists and general practitioners of recognized standing brought the almost unanimous answer that ichthyol has no therapeutic value, or that it is a simple emollient at best. In consideration of the lack of evidence for the value of ichthyol and the unfavorable opinion expressed by the Council’s consultants, the drug has been omitted from this edition of Useful Drugs. Sodium Arsenate: This has not proved to be an effective and useful drug and appears to be but little used. Pilocarpus, Physostigma, Morphin and Strychnin: The mention of these drugs was deemed superfluous. The drugs pilocarpus and physostigma are rarely used; instead the salts of their active constituents are employed. Similarly, the free alkaloids, morphin and strychnin, are rarely required and their salts are used. PREFACE TO SIXTH EDITION 1923 The text of the present edition has been so revised as to bring the statements of the actions, usage and dosage of drugs in accord with present-day knowledge and practice. The following have been omitted: solution of arsenous and mercuric iodid (Donovan’s solution), lime liniment (Carron oil), compound tincture of cinchona, compound extract of colocynth, copaiba, extract of opium, extract of gentian, hydras- tis (golden seal) and its preparations, syrup (simple syrup), squill and its preparations, antidiphtheric serum, dried anti- diphtheric serum, antitetanic serum, dried tetanus antitoxin and exsiccated sodium sulphite. Antidiphtheric serum, dried antidiphtheric serum, antitetanic serum and dried tetanus anti- toxin were omitted because the use of these preparations has been abandoned in favor of, respectively, purified antidiph- theric serum and purified antitetanic serum, which are retained. Syrup (simple syrup) was omitted because it was thought that a simple solution of sugar in water need not be described. The remaining drugs and preparations were omitted because of their decreasing use or because it was felt that they could be replaced with advantage by better or simpler preparations which are still retained. The following have been admitted: Anhydrous d-glucose: The evidence indicates that the intravenous administration of glucose solutions may be of distinct value in hemorrhage, shock, fevers, etc. Chaulmoogra oil and Chaulmestrol (the ethyl esthers of acids of chaulmoogra oil) : These are of value in the treatment of leprosy. Insulin: Because of its profound influence on the metabolism of the diabetic, insulin has established itself as a useful and valuable addition to materia medica. Nitrous oxid: The use of this anesthetic has been established for minor operations and as a means of inducing anesthesia preliminary to the administration of ether or chloroform. Luminal: This sedative has certain advan- tages over other similar-acting drugs, particularly in the treat- ment of epilepsy. Diphtheria toxin-antitoxin mixture: The value of this has been abundantly demonstrated. Neocin- chophen: In addition to the advantage over cinchophen of practical tastelessness, the drug appears to be less prone to produce gastric disturbance. Rabies virus: The reported suc- cesses leave little room for doubt as to the value of thj§ USEFUL DRUGS 9 product. Quinidine sulphate: The use of the drug in certain heart affections is still in the experimental stage; however, the reports of favorable results appeared to warrant its inclusion. The discussion of pharmaceutical preparations, such as con- fections, honeys, fatty oils, volatile oils, has been transferred from the body of the book to an appendix. The Therapeutic Index has been revised. A series of tables of metric and apothecary equivalents have been added. These changes and additions will, it is believed, make the book of increased usefulness to the general practitioner, to the teacher and to the student. The following abbreviations occur in the text: U. S. P.—The Pharmacopeia of the United States of America. N. F.—The National Formulary. N. N. R.—New and Nonofficial Remedies. P. I.—International Protocol. STATEMENT OF SOLUBILITY For ease of reference the solubility of official articles is indicated in approximate terms in accordance with the follow- ing equivalents: Substances that are soluble in less than 1 part of solvent = very soluble. From 1 to 10 parts of solvent = freely soluble. From 10 to 100 parts of solvent = soluble. From 100 to 1,000 parts of solvent = slightly soluble. From 1,000 to 10,000 parts of solvents very slightly soluble. From 10,000 to 100,000 parts of solvent = nearly insoluble. More than 100,000 parts of solvent = practically insoluble. The solubility values are for distilled water at approxi- mately 25 C. (77 F.) and for the official U. S. P. alcohol at the same temperature. ABBREVIATIONS USEFUL DRUGS Acacia (Acac.), Acacia, U. S. P. (Gum Arabic).—A gummy exudation from Acacia Senegal and other African species of acacia. Properties: Acacia occurs in colorless or pale yellowish opaque brittle, inodorous tears or fragments which are completely soluble in water (1:2), but practically insoluble in alcohol. Mucilago Acaciae (Mucil. Acac.), Mucilage of Acacia, U. S. P.—A 35 per cent, solution of acacia in distilled water. Action and Uses : Acacia and its mucilage are used as demulcents and as suspending agents in the making of emulsions and mixtures. In surgery acacia is used to pro- vide intravascular colloid. As its solutions readily ferment, mixtures containing it should be prescribed in small quan- tities, should be freshly prepared, or else preserved, prefer- ably by being kept cold. Acetanilidum (Acetanil.), Acetanilid, U. S. P. (Antifebrin).— The monacetyl derivative, CoH5NH(CH3CO), of anilin. Properties: Acetanilid is an odorless, crystalline powder, havi&g a slightly burning taste. It is only slightly soluble m water Tl: 190), but freely soluble in alcohol (1: 3.4). Incompatibilities : Acetanilid is incompatible with spirit of nitrous ether. It forms a semiliquid mass when triturated with chloral or antipyrin. Action and Uses : Acetanilid is analgesic, antipyretic and, in excessive doses, a cardiac depressant. These effects are probably due to para-aminophenoL into which it is converted in the body. Moderate doses have little effect on the temperature of normal animals and men, but such doses cause a marked reduction of the temperature in fever. Large doses, or small doses taken habitually, convert hemoglobin into met- hemoglobin and may destroy the red blood corpuscles. In poisonous doses acetanilid produces cyanosis, abnormal reduction of temperature, coldness of the extremities and profuse sweating. In individuals with an idiosyncrasy toward the drug similar symptoms may be produced by small doses. It should be avoided or used cautiously in patients who are debilitated from any cause, especially those wjth heart disease. Acetanilid is effective for the relief of headache, neuralgic pain, ancUfor the 'adlg'S' and pains, of the fever patient, but is not .suited to the treat- ment of pain caused by inflammation. It has been widely exploitedin the form of varying mixtures under different names as a universal analgesic. Many so-called headache powders contain it; its indiscriminate use in this way is dangerous. 12 USEFUL DRUGS Dosage: 0.20 Gm. or 3 grains. It is well to begin with 0.10 Gm. or about ll/2 grains and to repeat cautiously. It may be administered dry in the form of powders, cachets or capsules; because of its slight solubility it should not be massed in pills or compressed into tablets unless the tablet is crushed before swallowing or unless care is taken in the manufacture of the tablet to insure its rapid disin- tegration in the stomach. The addition of caffein (0.06 to 0.1 Gm., 1 to IV2 grains to each dose) renders it more effective against certain headaches. Formerly mixtures of acetanilid with caffein or ammonium salts were advised on the supposition that the cardiac depression would thus be avoided, but this does not seem to be the case. Investigation has shown that acetanilid is rendered somewhat more toxic by caffein. Acetphenetidinum (Acetphen.), Acetphenetidin, U. S. P. (Phenacetin ).—CoFE (OC2H5) .NH (CH3CO). Acetphenet- idin differs from acetanilid in containing the ethoxyl group C2H.1O. Properties: Acetphenetidin occurs as white, crystalline scales or a crystalline powder. It is odorless and slightly bitter. It is very slightly soluble in water (1: 1,310), but soluble in alcohol (1: IS). Incompatibilities : The same as for acetanilid. Action and Uses : Similar to those of acetanilid. The analgesic, antipyretic and cardiac depressant effects of acetphenetidin, like those of acetanilid, are due to the for- mation of para-aminophenol, and its possible advantage over acetanilid is probably due to the fact that this decom- position occurs more slowly. It is best administered in the form of powders, cachets or capsules. Since the enactment of the Food and Drugs Act, June 30, 1906, acetphenetidin has frequently displaced acetanilid as the active agent in proprietary mixtures for the relief of headache and other pain. Its relation to acetanilid sug- gests similar caution in its use. Dosage: A full dose is 0.30 Gm. or 5 grains. It is well to begin with 0.20 Gm. or 3 grains, and repeat every three hours if needed for a few doses. When small doses fail to relieve headache, larger doses are also usually ineffective. For mixtures with caffein see under Acetaniiidum. Acidum Aceticum (Acid. Acet.), Acetic Acid, U. S. P.—A solution containing about 36 per cent, by weight of absolute acetic acid, CH3COOH. (In some European countries a preparation comparable to glacial acetic acid, U. S. P., containing 99 per cent, of absolute acetic acid, is known as acetic acid, and the article that is official in the U. S. P. as “diluted acetic acid” is sometimes described as acetum or vinegar.) Diluted Acetic Acid, U. S. P., contains 6 per cent, of absolute acetic acid. USEFUL DRUGS 13 Properties: Acetic acid is a clear, colorless liquid. In all of its forms it is freely miscible with water. Action and Uses: Acetic acid, as such, is not ordinarily used internally, but when administered in the diluted form it is mildly diuretic. Externally it is a rubefacient, caus- tic and" parasiticide!- Acidum Acetylsalicylicum, Acetylsalicylic Acid, N. N. R. (Aspirin).—CgHjO(CHsCO).COOH,1 : 2. The acetic acid ester of salicylic acid. Properties: Acetylsalicylic acid occurs as a crystalline, odorless powder with an acidulous taste. It is slightly soluble in water (1: 100) and freely soluble in alcohol. Incompatibilities : Moisture and alkalies decompose it. Action and Uses: Acetylsalicylic acid acts like salicylic acid and the salicylates, but its taste is less nauseant and it seems to be more efficient as an analgesic. It is employed as an antipyretic, analgesic and antirheumatic. It is much used for the relief of headache and colds. Acetylsalicylic acid is not free from untoward secondary effects, some- what similar to those of sodium salicylate (which see). It sometimes causes urticaria and dangerous acute edema of the respiratory passages. Dosage: 0.3 to 0.6 Gm. or 5 to 10 grains, repeated once in three hours unless symptoms of salicylism (ringing in the ear, etc.) are noted, or other toxic effects develop. Acidum Benzoicum (Acid. Benz.), Benzoic Acid, U. S. P.— An organic acid, C8H5.COOH, obtained from benzoin by sublimation, or prepared synthetically. Properties: Benzoic acid occurs as lustrous scales or needles, having an odor resembling benzoin, when obtained from the latter, and a pungent, acid taste. It is only slightly soluble in water (1: 275), but is soluble in alcohol (1:2.3). It reacts with alkali hydroxids, and carbonates to form water-soluble benzoates. Action and Uses : Benzoic acid is a mild antiseptic. It is excreted in the urine in the form of hippuric acid (benzoyl glycocoll). Dosage: 0.5 Gm. or 8 grains. It is preferably dis- pensed in the form of powder and may be enclosed, dry, in capsules or cachets. It is more frequently used in the form of soluble compounds (see Sodii Benzoas). Acidum Boricum (Acid. Bor.), Boric Acid, U. S. P. (Boracic Acid, obsolete) (H,BO.) = B(OH).. Properties: Boric acid occurs as transparent, colorless scales or a light, unctuous, very fine powder. It is odorless, has a faintly bitter taste and is slowly soluble in water (1: 18), soluble in alcohol (1: 18) and freely soluble in glycerin (1: 4). Action and Uses: Boric acid is a mild antiseptic and astringent. It has been occasionally administer"eT~TffEefr nally, but with little effect, in cystitis. Externally it is frequently used as a dusting powder, either alone or com- 14 USEFUL DRUGS bined with diluents such as starch or talcum, or with active substances such as’acetanilid, salicylic acid or iodo- form. It is also widely used as a wash or lotion, especially for catarrh of the mucous membranes, cystitis, conjunc- tivitis, pharyngitis, etc., usually in simple aqueous solu- tions containing from 2 to 4 per cent, of boric acid. This is one of the most frequently used lotions for conjuncti- vitis. It is also very useful for irrigating the bladder in cystitis. The glycerite of boroglycerin is employed in washes and injections. The ointment is mildly antiseptic but is chiefly used as a protective dressing. Glyceritum Boroglycerini (Glycer. Boroglyc.), Glycerite of Boroglycerin, U. S. P.—A glycerin solution represent- ing 31 per cent, of boric acid. Unguentum Acidi Borici (Ung. Acid. Bor.), Ointment of Boric Acid, U. S. P.—A 10 per cent, mixture of boric acid with paraffin and white petrolatum. Acidum Citricum (Acid. Cit.), Citric Acid, U. S. P.—A tribasic organic acid, HsCaHsOr+EUO, usually prepared from the juice of limes or lemons. Properties: Citric acid forms colorless, transparent crystals; odor- less and having an agreeable purely acid taste. It is very soluble in water (1:0.5) and freely soluble in alcohol (1:1.8). Action and Uses : Citric acid is employed as an acid flavor (about 1 per cent.), and in effervescent drinks. It is oxidized in the tissues to carbonic acid, so that it does not act as an acid in the tissues; if given with alkalies, the effects of the latter predominate. Citric acid is not antiscorbutic, and therefore is not an effective substitute for lemon juice. Dosage: 0.5 Gm. or 8 grains. It may be prescribed in the form of a syrup (Syrupus Acidi Citrici, U. S. P.) or as lemonade. Acidum Hydrochloricum (Acid. Hydrochl.), Hydrochloric Acid, U. S. P. (Muriatic Acid).—A fuming corrosive liquid containing about 32 per cent, of hydrogen chlorid, HC1. Acidum Hydrochloricum Dilutum (Acid. Hydrochl. Dil.), Diluted Hydrochloric Acid, U. S. P.—A solution con- taining about 10 per cent, of hydrogen chlorid, HC1. Properties: Diluted hydrochloric acid is a colorless, odorless, strongly acid aqueous solution; freely miscible in all proportions with water or alcohol. Incompatfblities : It is incompatible with alkalies, car- bonates and oxids, with which it reacts to form chlorids, and with the soluble salts of silver and of lead, forming insoluble silver chlorid and lead chlorid. USEFUL DRUGS 15 Action and Uses : Hydrochloric acid is the acid of the gastric juice and acts as an antiseptic in the stomach. Acidity is necessary to the digestive action of pepsin. By checking fermentation and putrefaction in the stomach hydrochloric acid tends to prevent these processes in the intestine. Diluted hydrochloric acid is used for the treatment of diseases of the stomach characterized by a deficiency of acid in the gastric juice on the theory that it replaces the acid lacking in the secretion. To restore the acidity of the stomach contents to the normal average would require much larger doses than are commonly given. It seems probable, therefore, that the acid as ordinarily given acts mainly as a stimulant to the gastric mucosa. The utility of hydrochloric acid in achylia gastrica is more manifest in the nervous forms and in the earlier stages of the organic variety. In some cases it causes distress and should be discontinued. There is some evidence to show that the continued administration of the acid is capable of increasing the gastric secretion. Hydrochloric acid also exerts a favorable influence on the secretion of the pan- creatic and intestinal juices and on the motor functions of of the stomach. Hydrochloric acid is also of service in intestinal putre- faction, when this is due to impairment of gastric digestion. It is indicated in achylia gastrica for the diarrhea caused by the irritant action of undigested meat and the putre- faction of proteins which have escaped gastric digestion. Dosage: 1 Cc. or 15 minims of the diluted acid in about half a glass of water. It should be given after meals and the dose repeated at the end of an hour. It is best to com- mence with a few drops and to increase the dose gradually, until relief is obtained or distress produced. Five drops in a wineglassful of water after meals are often sufficient; or it may be taken with the meal. Acidum Nitricum (Acid. Nitric.), Nitric Acid, U. S. P.—A liquid containing about 68 per cent., by weight, of hydrogen nitrate, HNOa. Properties: Nitric acid is colorless, fuming, very caustic and corrosive and has a peculiar, somewhat suffocating odor. It is mis- cible with water in all proportions, dissolves mercury and most other metals with evolution of red fumes and stains woolen fabrics and animal tissues a bright yellow. Incompatibilities : Like other inorganic acids, it is incompatible with alkalies, the alkali carbonates, many of the salts of organic acids, and, because of its oxidizing properties, with all readily oxidizable substances. Its addi- tion to organic liquids (alcohol, etc.), is apt to give rise to explosive reactions. Action and Uses: Nitric acid is a powerful caustic, used for removing warts and small nevi and for cauterizing chancroids and other sores, and the wounds made by 16 USEFUL DRUGS rabid animals, but its action is very painful and not readily controlled. When nitric acid is used as a caustic, the surrounding healthy tissue should be coated with petro- latum and the acid applied on the end of a rod of glass or wood. Acidum Salicylicum (Acid. Salicyl.), Salicylic Acid, U. S. P. —An organic acid, CeH4(OH)COOH, generally prepared synthetically from phenol. Properties: Salicylic acid occurs as fine, white needles or as a bulky white crystalline, odorless powder, having a sweetish, subse- quently acrid taste. It is only slightly soluble in water (1: 460), but freely soluble in alcohol (1:2.7), or in ether (1:3). Salicylic acid reacts with alkali hydroxids and carbonates to form water-soluble salts. With solution of ferric chlorid it gives a deep purple color. Incompatibilities : It is incompatible with salts of iron and with spirit of nitrous ether. Action and Uses: Salicylic acid is an antiseptic. It is quite irritant to mucous membranes and somewhat corro- sive. Internally it has the actions described under sodium salicylate, in which form it is commonly employed. Exter- nally it has been used as an application in pruritus, urticaria, bromidrosis and in some forms of eczema; also in the form of ointments and collodions to cause exfolia- tion of corns and warts. Dosage: Internally it is best given in the form of soluble salicylates. (See Sodii Salicylas.) Externally it is applied as an astringent in from 1 to 2 per cent, alcoholic solution or ointment; as an antiseptic, antiparasitic and keratolytic agent, in 2 to 5 per cent, dusting-powder, or ointment, and as a strong keratolytic in proportions up to 20 per cent., best dissolved in collodion. Continuous application to the skin may occasion slight corrosion. Acidum Tannicum (Acid. Tann.), Tannic Acid, U. S. P. (Tannin, Gallotannic Acid).—A tannin usually obtained from nutgaLls. Properties: Tannic acid occurs as a light yellowish, amorphous powder, gradually turning darker when exposed to air and light. It has a faint, characteristic odor and a strongly astringent taste. Tannic acid is very soluble in water, alcohol and glycerin. Incompatibilities : It is incompatible with alkalies, alkaloids, salts of iron and of most other metals, albumin and gelatin. With alkaloids and the salts of the heavy metals it reacts to form insoluble compounds. Action and Uses: Tannic acid is used as an astringent and hemostatic. Internally it has been chiefly employed in the treatment of diarrhea, preferably in the form of USEFUL DRUGS 17 albutannin, acetannin or gambir, as the action of free tannic acid on the stomach may produce nausea or vomiting. It should be employed not as the principal curative agent, but as an occasional adjunct to proper dietetic and physical remedies when the discharges are unduly profuse. Local applications of tannic acid are frequently made to inflamed mucous membrane, especially in pharyngitis. It is also applied locally in the treatment of hemorrhoids in the form of a 20 per cent, ointment os as a suppository containing 0.1 Gm. or 1)4 grains. Dosage : 0.5 Gm. or 8 grains. Glyceritum Acidi Tannici (Glycer. Acid. Tann.), Glyc- erite of Tannic Acid. U. S. P. (Glycerite of Tannin).— A 20 per cent, solution of tannic acid in glycerin. Dosage: 2 Cc. or 30 minims, corresponding to 0.4 Gm. or 6 grains of tannic acid. This preparation is chiefly used externally and affords a convenient agent for making dilute solutions for local use. For local applications solutions containing from 0.5 to 2 per cent, of tannic acid are appro- priate. Aconitum (Aconit.), Aconite, U. S. P. (Monkshood, Aconite Root, Aconiti Tuber, P. I.).—The dried tuberous root of Aconitum napellus L. Yields not less than 0.5 per cent, of the ether-soluble alkaloids of aconite. When extracted and assayed biologically the minimum lethal dose should not be greater than the equivalent of 0.04 mg. of aconite for each gram of body weight of guinea-pig. Action and Uses : Aconite slows the pulse and thus., tends to blood pressure. The nervous system..i&. fiT5r~sttmt!late3~' ariTl 'then"’depressed. Death occurs from respiratory paralysis. Epcally “applied, aconite causes -tin- gling, followed by numbness. Aconite is used internally as a cardiac depressant, anti- pyretic and diaphoretic, especially in asthenic Severs of snort duration or in the initial stage only of other fevers. It should be avoided in fevers accompanied by cardiac weakness. Its efficacy in fevers is doubtful, and its use is constantly diminishing. Externally it is used in the form of the tincture, as a local application for the relief of neuralgic pain. Tinctura Aconiti (Tr. Aconit.), Tincture of Aconite, U. S. P. (Aconiti Tinctura, P. I.).—Contains from 0.045 to 0.055 per cent, of the ether-soluble alkaloids of aconite. The chemical assay, however, is not an index of activity. If assayed biologically the minimum lethal dose should not be greater than 0.0004 Cc. for each gram of body weight of guinea-pig. One hundred Cc. represent 10 Gm. of the drug in approximately 65 per cent, of alcohol. 18 USEFUL DRUGS Dosage: 0.2 Cc. or 3 minims should be given hourly until the desired effecGon the pulse is secured. Locally the tincture may be applied cautiously over the course of the affected nerve, or a liniment containing 10 per cent, of the tincture may be prescribed. The application locally of considerable amounts of undiluted tincture is dangerous, as too much absorption may occur. It should not be applied to mucous membrane. Adeps, Lard, U. S. P.—True fats, chiefly those of animal origin, form an important class of ointment bases. They are especially valuable when penetrating ointments are desired for softening the skin, for inunctions, etc. Lard is the chief fat thus used. Like all animals fats, it is very likely to become rancid. To mitigate its odor and to hinder the occurrence of rancidity the following prep- aration is used. Adeps Benzoinatus (Adeps Benz.), Benzoinated Lard, U. S. P.—Benzoinated lard is made by incorporating with lard 1 per cent, of benzoin, and straining. Adeps Lanae Hydrosus (Adeps Lan. Hyd.), Hydrous Wool Fat, U. S. P. (Lanolin).—This preparation is made by mixing the purified fat of sheep’s wool with water in a proportion not to exceed 3 parts of the latter to 7 parts of the former. Hydrous wool fat is used as an ointment base. It has the advantage that it does not become rancid, and that a considerable amount, as much as twice its weight, of water can be incorporated with it; its odor and consistence are disagreeable. To improve the latter, it is well to add 20 to 100 per cent, of petrolatum. The old statement that it is more readily absorbed than other ointment bases has not been borne out by experience. Aether, Ether, U. S. P.—A liquid composed of about 96 per cent., by weight, of ethyl oxid, (QH5)jO, and about 4 per cent, of alcohol, GHUOH. Properties: It is volatile, inflammable, and the vapors, which are about two and one half times as heavy as air, are dangerously explo- sive when mixed with air. Ether is soluble in water (1: 12) and miscible with alcohol; when administered internally it is usually directed to be dispensed in the form of an alcoholic solution. Action and Uses : Ether is used mainly by inhalation for the production of anesthesia. It depresses all parts of the central nervous system, causing loss of sensation, loss of consciousness and abolition of the reflexes. The vital centers of the medulla are involved very late in the poison- ing, a fact which enhances the safety of this anesthetic. The respiratory center is the first of these to be affected. Later there is depression of the vasomotor center and con- USEFUL DRUGS 19 sequent fall of blood pressure. Ether does not a marked effect on the heartTTmt its first action Is a moderate reflex stimulation. In the administration of ether as an anesthetic, caution should be exercised to have the ether at a distance from and, if possible, below any fire or flame, to avoid setting fire to the heavy inflammable vapors. For anesthesia a pure ether, preferably anhydrous, should be used. It is occasionally administered internally, particu- larly in spirit form, as an anodyne, sedative, carminative and antfspasmodic. Dosage: 1 Cc. or 15 minims. Spiritus Aetheris (Sp. Aeth.), Spirit of Ether, U. S. P. —A 32.5 per cent, alcoholic solution. Dosage: 4 Cc. or 1 fluidram, well diluted with cold water or on cracked ice. Aether Nitrosus, Nitrous Ether.—Ethyl nitrite, GHUNCk. Used only in the form of: Spiritus Aetheris Nitrosi (Sp. Aeth. Nitros.), Spirit of Nitrous Ether, U. S. P. (Sweet Spirit of Niter).—A solution of from 3.5 to 4.5 per cent, of ethyl nitrite in alcohol. Properties: Spirit of nitrous ether is a pale yellowish liquid hav- ing a fragrant, ethereal and pungent odor and a sharp burning taste. It is miscible with alcohol or water. It deteriorates rapidly. Incompatibilities : It is incompatible with such sub- stances as acetanilid, antipyrin, potassium iodid and sodium salicylate. „ . ' . Action and Uses : Spirit of nitrous ether is popularly used as a weak diuretic and diaphoretic. It is of doubtful value in many of the conditions for which it is commonly used. It is frequently prescribed in mixtures with other diaphoretics, notably the solution of ammonium acetate. Dosage: 2 Cc. or 30 minims, freely diluted with water. Ii Aethylis Chloridum (Aethyl. Chlor.), Ethyl Chlorid, U. S. P. —Monochlorethane, GHSC1. Properties: Ethyl chlorid is a colorless and very volatile liquid having an agreeable odor and a sweetish, burning taste. It should be preserved in hermetically sealed glass tubes and kept in a cool place remote from light or fire. /jJ Action and Uses : Etliyl chlorid is used for minor operations in the form of spray to produce a local anes- thesia by refrigeration. When i[ produce;: prompt anesthesia, suitable for very short operations, but even then not without danger of producing accidents similar to those of chloroform. Because of these dangers and the difficulty of handling, it is now rarely used for general anesthesia. Aethylmorphinae Hydrochloridum (Aethylmorph. Hydrochl.), Ethylmorphin Hydrochlorid, U. S. P. (Ethylmorphin Chlorid, Dipnin). ' ‘/T 20 USEFUL DRUGS Properties: Ethylmorphin is an artificial base obtained by the action of ethyl iodid on morphin in the presence of an alkali. The hydrochlorid occurs as a white, microscopically crystalline powder, odorless and having only a slight bitter taste. Ethylmorphin hydro- chlorid is freely soluble in water (1:8) and in alcohol (1:22), but t practically insoluble in ether and in chloroform. Action and Uses : When administered internally, the action of this drug is intermediate between the action of morphin and that of codein, but it is claimed that ethyl- morphin hydrochlorid does not produce constipation, nausea or lassitude. The conclusion of careful observers, however, is that, for internal use, it possesses no advantage over codein. When applied to the eve this drug causes a local vaso- dilatation, terminating in acute conjunctival edema. The chemosis thus produced is employed for its analgesic and curative effects in conjunctivitis, corneal ulcer, acute glau- coma, iritis, scleritis and other inflammatory diseases of the uveal tract. The greater the edema of the conjunctiva induced by it, the more decided is its analgesic action. Dosage: 0.015 Gm. or % grain. Externally it is com- monly employed~1n~a'collyrium Tn strength varying from 5 to_lQ_.per cent. The sTrength may be increased to 20 per cent., and it is sometimes used in powder form. The ophthalmologist should make the first application and deter- mine the minimum strength of solution which will produce the necessary chemosis. This dose should not be increased until it loses its effect. The action of the remedy may be regarded as sufficient as long as its application is followed by chemosis, redness and burning sensations for from one to two minutes afterward. Under these circumstances it may be instilled once a day. The patient should be instructed that the swelling of the conjunctiva is necessary to the therapeutic action of the remedy and that no harm to the eye will ensue from its use. In cases of corneal opacity ethylmorphin hydrochlorid has been applied to the eye in the form of powder. It may also be used as an ointment in strength varying from 1.5 to 5 per cent. Alcohol, Alcohol, U. S. P.—In European pharmacopeias alcohol is usually designated as Spiritus, and varies con- siderably in strength. Properties: The official U. S. P. alcohol is a colorless volatile liquid containing about 94 per cent, by volume of absolute ethyl alcohol, CoHbOH, and 6 per cent, by volume of water. It has a characteristic odor and burning taste. It is miscible in all proportions with water, ether or chloroform. In addition to alcohol, the U. S. P. also describes dehydrated alcohol, used as a laboratory reagent, etc., and also diluted alcohol (approximately 50 per cent.) used in phar- macy as a menstruum. USEFUL DRUGS 21 Action and Uses : Externally, alcohol is a rubefacient and astringent, and by its evaporation, a refrigerant. It' is used to harden and cleanse the skin; as a mild counter- irritant (soap liniment), etc. In the concentration of 70 per cent, it is markedly antiseptic and is employed in sur- ’gery especially as tincture of green soap, to cleanse the 'skin of patient and operator. Internally, alcohol is a narcotic; excessive doses depress and paralyze the central nervous system. Small doses pro- duce euphoria, stimulate respiration, moderately dilate the cutaneous and splanchnic vessels, and modify the circula- tion. It is burned in the body and thus serves to a restricted extent as a source of energy. Alcohol is employed as a diffusible stimulant, diapho- retic and hypnotic.1 In well selected cases, especially, >in patients accustomed to its use, it may be very valuable *• ■otherwise it is apt to do more harm than good. In practice is usually administered in the form of whisky, brandy, wine or other alcohol-containing beverages. In pharmacy alcohol is used as a solvent and, for admin- istering medicines, is largely used as a vehicle in the form of: Aromaticum (Elix. Arom.), Aromatic Elixir, U. S. P. (Simple Elixir).—An aromatic and sweetened liquid containing about 23 per cent, of alcohol, by volume. Aloe, Aloes, U. S. P—The inspissated juice of various species of Aloe is included in all the pharmacopeias. It is used in its original form, as a watery extract or as a purified extract known as aloin. Properties: Aloes differs considerably in color and appearance, but in all its forms it has a rather characteristic color and a nauseous, very bitter taste. Aloes is partially soluble in water. Action and Uses: Aloes belongs to the emodin group of cathartics acting on the large intestine. The effects are similar to those of cascara, but somewhat more irritant. 1. Instructions to collectors of internal revenue, issued by commis- sioner of internal revenue, Feb. 1, 1920, regarding the enforcement of the National Prohibition Act, direct, under the head of medical uses of wines and spirits, that physicians who have received permits may pre- scribe wines and liquors for internal use or alcohol for external uses; there are certain limitations on the quantity prescribed for a single patient at a given time; no alcoholic liquors may be prescribed unless the patient is under the personal supervision of the physician. Prescrip- tions, except in certain emergencies, must be written on official blanks furnished by the government on which must be indicated clearly the name and address of the patient, including street and apartment number if any, and permit number and date when written; on the stub retained by the physician record must be made of kind and quantity of liquor prescribed and the ailment for which prescribed. The physician must keep a separate record for each patient. The record also must. show under the patient’s name and address the date of each prescription. These regulations are subject to change, and the prescribing of alcohol is also subject to the restrictions of state laws. USEFUL DRUGS It is convenient for administration as pills, especially in the form of aloin, Purgative, doses may produce griping. Dosage: The purgative dose of aloes is from 0.125 to 0.3 Gm. or from 2 to 5 grains. For the treatment of chronic constipation smaller doses, 0.03 to 0.06 Gm. or % to 1 grain, should be used if the use of a laxative is deemed advisable. A preparation of belladonna is frequently com- bined with it on purely theoretical grounds and without demonstrated advantage. Extractum Aloes (Ext. Aloes), Extract of Aloes, N. F. Aloinum (Aloin.), Aloin, U. S. P.—A pentosid or mixture of pentosids obtained from aloes. Dosage: 0.125 Gm. or 2 grains. Dosage: Purgative dose 0.015 Gm. or % grain. In the treatment of chronic constipation aloin is frequently given in doses of from 0.005 to 0.02 Gm. of M.2 to % grain, often in combination with extract of belladonna and strychnin. The advantage of these additions is doubtful. It may be taken after supper or at bedtime: if at bedtime, with plenty of water and a cracker, or at least with some food. Alumen (Alum.), Alum, U. S. P.—Crystallized ammonium or potassium aluminum sulphate NHUAl or KA1(S04)2+12H20. Properties: Alum occurs as colorless crystals or a white powder without odor, but having a strongly astringent taste. It is freely soluble in water, practically insoluble in alcohol. It contains about 45 per cent, of water of hydration, which can be removed by heat, the product being exsiccated alum. Incompatibilities : Alum is incompatible with alkalies and carbonates, which react with it with the formation of insoluble aluminum hydroxid. It is also incompatible with salts of lead because it precipitates the insoluble lead sulphate. Action and Uses : Alum is astringent. It is seldom administered internally. Dosage: Alum solution may be used as a gargle (from 1 to 5 per cent.) but it is somewhat injurious to the teeth: it may be given as an injection in gonorrheajTrom 0.5 to 1 per cent.) and as a lotion in skin diseases (1 per cent.). Alumen Exsiccatum (Alum. Exsic.), Exsiccated Alum, U. S. P.—A powder representing about twice its weight of the crystallized alum; it is sometimes used externally as a dusting powder or in the form of ointments. Alumini Acetas, Aluminum Acetate.—Used principally in the form of: USEFUL DRUGS 23 Liquor Alumini Subacetatis (Liq. Alumin. Subacet.), Solution of Aluminum Subacetate, N. F.—Described in the National Formulary III under the name of Liquor Alumini Acetatis. Properties : A clear, colorless solution, containing from 7.5 to 8 per cent, of basic aluminum acetate, having an acetous odor and a sweetish, astringent taste. Action and Uses : Solution of aluminum subacetate is used extensively as a mild astringent and antiseptic. Because of the readiness with which this solution is decom- posed it is advisable to dilute it with water only. For application to the skin it should be diluted from four to nine times. COMPOUNDS.—Ammonium compounds are divisible into two classes. In the first class the ammonium is combined with a strong acid such as hydrochloric or sulphuric. These form stable neutral salts which act largely by their salt action. In the second class belong ammonium hydroxid and carbonate. These compounds are unstable, decomposing readily with liberation of ammonia. "Such compounds produce powerful local irritation and accompanying reflex effects by the action of the ammonia involved. Ammonium salts, when injected into the circulation, stimulate the central nervous system, but they are so rapidly excreted or converted into urea that they cannot produce marked systemic action when taken by mouth, even though they are absorbed very readily. Their effects are, therefore, chiefly local. The expectorant action of the neutral salts, such as the chlorid, is probably due to mild irritation of the mucous membrane. With ammonium car- bonate, this effect is reinforced by its alkaline reaction, through which it is supposed to increase the fluidity of mucus. All ammonium compounds used in medicine are soluble in water, and the carbonate and hydroxid have an alkaline reaction. Ammonia.—NFL. An irritating gas, soluble in alcohol, and in water, in which a part is converted into NH4OH. Water of ammonia and the several preparations contain- ing it are strongly alkaline. Incompatibilities: It is incompatible with acids, neu- tralizing them and forming the salts of ammonium. It is also incompatible with the soluble salts of many metals because it precipitates from these solutions the hydroxids of the metals. Thus ammonia water with solution of ferric chlorid produces an insoluble precipitate of ferric hydroxid. Solutions of ammonia are also incompatible with the salts of alkaloids, from which they liberate the alkaloid. Action and Uses: Ammonia internally in the form of water of ammonia or preferably of aromatic spirit of USEFUL DRUGS ammonia is a stimulant, because the escaping ammonia irri- tates the mucous membranes of the nose and of the stomach and causes a reflex increase in the force of the heart and in the blood pressure. Little, if, any, of the gas is absorbed by the respiratory tract. Externally, ammonia is used as a rubefacient, chiefly in form of the liniment. Applied in concentrated solution, especially if evaporation is prevented, it is apt to blister. Aqua Ammoniae (Aq. Ammon.), Ammonia Water, U. S. P.—An aqueous solution, containing about 10 per cent, by weight of ammonia (NHS). On standing, this solution loses ammonia and hence should be kept in well- stoppered bottles and should frequently be tested by the pharmacist. Ammonia water is a colorless liquid, hav- ing a very pungent, characteristic odor and a caustic, soapy taste. It is freely miscible with water and alcohol. Ammonia water is used chiefly for counterirritation in the form of: Linimentum Ammoniae (Lin. Ammon.), Ammonia Lini- ment, U. S. P. (Volatile Liniment, Hartshorn Liniment). —A mixture of ammonia water 25 parts and a fatty oil 75 parts. -5 Ammonii Carbonas (Ammon. Carb.), Ammonium Carbonate, U. S. P.—Consists of a mixture of ammonium acid car- bonate and ammonium carbamate. Properties: It occurs as white, hard masses, having a strong odor of ammonia and a sharp, saline taste. On exposure to the air the salt loses both ammonia and carbon dioxid. Ammonium carbonate is slowly but freely soluble in water (1:4), the ammonium carbamate being thereby converted into normal ammonium carbonate. Alcohol dissolves the carbamate and leaves the acid carbonate. Incompatibilities : Ammonium carbonate is incompatible with acids, which decompose it, forming salts of ammo- nium and evolving carbon dioxid (CO2). It precipitates the carbonate or the hydroxid of most metals and the insoluble alkaloids from solutions of their salts. Action and Uses : Ammonium carbonate is largely decomposed (hydrolyzed) when dissolved in water, and its solutions are irritant to mucous membranes from the action of the ammonia set free. It is used by inhalation or in solutions as a reflex or diffusible stimulant in syncdpe, or arrest of respiration, and as a liquefying expectorant in . ■ tbs'.'*1'' ■ • Dosage: 0.3 Gm. or 5 grains, dissolved in sufficient water (about one tablespoonful) to avoid too great irri- tation, which may result in nausea and vomiting. On the other hand, as the action of the remedy depends on its irri- tating qualities, it should not be too greatly diluted. Syrup- pf glycyrrhiza forms a suitable, v£biclefor it.- USEFUL DRUGS 25 Spiritus Ammoniae Aromaticus (Sp. Ammon. Arom.), Aromatic Spirit of Ammonia, U. S. P.—A solution of ammonium carbonate with some free ammonia and aromatic oils in a mixture of distilled water with alcohol. Action and Uses : A useful reflex stimulant, antacid and carminative, having the action and uses of ammonium car- bonate combined with those of the alcohol and volatile oils. Dosage: From 1 to 5 Cc. or 15 to 60 minims, freely diluted with water. As the stimulating action is of short duration, a moderate dose may be repeated in from fifteen minutes to half an hour. Ammonii Chloridum (Ammon. Chlor.), Ammonium Chlorid, U. S. P.—NH 1 v-t Haj Uj en(* emulsion resin and volatile oil. , , Action and Uses : Asafetida is used in the treatment of hysteria, acting probably by its odor. It is also car- minative. Dosage : 0.25 Gm. or 4 grains—preferably in pill form. In tympanites an emulsion may be used as an enema. The emulsion is made by triturating 4 Gm. of the drug with 100 Cc. of water until a uniform emulsion results. The strength may be varied to meet individual requirements. Aspidium, Aspidium, U. S. P. (Male Fern).—The (fried rhizome of several species of Dryopteris; used only in the form of: Oleoresina Asp™tt —Aspid.), Oleoresin of ""'Aspidium, D. B. (Uieoresin of Malefern).—An oleo- resin prepared by extracting aspidium with ether, evaporat- ing and recovering the solvent. Properties: The most important constituent of male fern is filicic - Action and Uses: Oleoresin of aspidium is used as a teniacide against ordinary tapeworm, Tut it is be more efficient against the B ordinary tenias. Ordinarily the active constituents of aspidium are not absorbed and produce no symptoms except some nausea. If absorption occurs, violent symptoms of poisoning may ensue. These are vomiting and purging, weakness, spasms in the extremities, convulsions, stupor deepening into coma, and collapse. Disturbances of sight and hearing may occuj, permanent blindness some- times follows. Jaundice has been observed. Dosage: 2 Gm. or 30 grains is the dose stated in the Pharmacopeia, but-most authorities recommend a larger dose. The dose should be proportioned to the strength and health of the patient. Robust males can take as much as 8 Gm. or 2 drams, while women sflbuld be given smaller special caution should "be” exercisea irf adminis- tering the drug to anemic or debilitated persons. Children . of 4 years mav take 4 Gm. or 60 grains. A dose««f 8 Gm. or 2 drams “has been-"fatal' to a child and 25 Gm. or 6 drams have several times proved fatal to adults. Before this remedy is given, the alimentary canal should be emptied by a light diet or fasting for twenty-four hours and the administration of a saline cathartic in the morning before the anthelmintic is taken. The drug should be giyen _ early in the morning and is best prescribed in capsules, each containing U.3 Gm., or 5 grains, to be fa’Icen vals of fifteen minutes until the full dose has been swal- 36 USEFUL DRUGS lowed. The last dose should be followed in threje hours by a saline laxative. Castor olTorJother fixed oils should not be ~given, because they favor the absorption of the "acTive principle Atropina (Atrop.), Atropin, U. S. P.—An alkaloid obtained from Atropa_ belladonna and from other, plants of the Solanaceai Properties: The alkaloid itself is only slightly soluble in water (1: 445), but freely soluble in alcohol (1: 2), and is usually prescribed in the form of one of its salts, which are readily soluble in water. The salt most commonly used is: Atropinae Sulphas. (Atrop Sui.ph.T Atropin Sulphate. U. S. F.—The sulphate of the alkaloid atropin. Properties: Atropin sulphate occurs as a white, crystalline powder or microscopic crystals, which are odorless but have a very bitter, nauseating taste. Atropin sulphate is very soluble in water_(l: 0.4) and in alcohols (1: Incompatibilities : Atropin sulphate is incompatible with alkalies and their carbonates? While no precipitate of the alkaloid would form, unless the solution were more concentrated than those ordinarily used in medicine, the alkaloid in the presence of alkalies is likely to be decom- posed. Solutions of the alkaloid are also incornpati^1p "M'th the general alkaloidal such as tannic acid, iodin and potassium mercuric iodid, all of which precipitate compounds of the alkaloid, and with salts of mercury, which decompose it. Action and Uses : Atropin and the related jjepress or paralyze the endings the vagus and othej; merves oi tne parasympathetic'svslern and_of~tEe the sweat VianZUsT Atropin cherts the secretion of saliva so that the mouth and throat become dry. 'inis dryness is due to some extent to a similar effect on the mucous secretions of the mouth, throat and iwse. an application of this action, the drug is occasionally used to check excessive secretion of saliva in ptyalism, mercurial salivation, etc. it is also used especially in the first stage, to diminish the con- gestion and excessive secretion of the nasal mucus. It is held by some to be very useful in sore throat. It is used in case of pxppggivp pvpeefpration in bronchor- rhea, etc. jt aJcn.rWl-s tbp cer-retion of saliva' and mucus during anesthesia-in operations on..ihe...throat larvnx. etc. diminishes the secretion of by the stomach. It is given for this purpose, often as bella- donna, in byperchlorhydria, gastric ulcer, etc. While it has a decided effect on the secretion, its use should not USEFUL DRUGS 37 be continued for a long time. It frhecks the secretion of the pancreatic or at least prevents the increase that Voilows the ingestion of physostigmin and other drugs, but does not prevent the action of secretin. It abolishes the secretion of that part of the bile which is under vagus control, but this action is probably unimportant. It is said not to affect the secretion of intestinal mucus. Atropin relaxes spasm nf the intestinal mnscplature and in small doses favors the normal peristalsis,. It is there- lore of service in spasmodic affections of 'the stomach and intestine. It may be prescribed in colic, painful spasms due to gastric, duodenal or intestinal ulcers, spastic con- stipation, etc. It is a serviceable anodyne in gallstone rnh>_. and may render the use of morphin unnecessary. In small or moderate doses it arts as a respirator stimu- lant, "hut very large doses cause respiratory paralysis. It may be empl6yecT~with good effect in cases in which the respiration is embarrassed from other than mechanical agents. It is used for this purpose in morphin poisoning, but it should be administered with great care on account of the respiratory depression caused by large doses. To obviate the effect of morphin on the respiration, it is given with the latter drug in hypodermic injections. It has also been given with morphin as a preliminary to anesthesia by ether; in such cases it also serves to lessen the salivary and bronchial secretions and tends to prevent vomiting. By paralyzing the vagus endings atropin increases the rapidity of the heart beat. Its depressant action on the' vagus is made use of in the diagnosis of certain distur- bances of the cardiac rhythm, particularly bradycardia. If the slow pulse is due to an organic lesion of the conducting mechanism (heart block), it will persist in spite of the action of atropin, but if it is due to vagal stimulation, an increased rate usually results from an effective dose. Atropin in moderate doses relaxes the blood vessels of the skin so that the skin, especially ol the iace and upper extremities, becomes red, sometimes showing an eruption closely resembling that of scarlet fever. In larger doses it contracts 4he vessels of the splanchnic area and .raises (he. In still larger doses a general fall of* blood pressure occurs, accompanied by a very rapid and feeble pulse. It is not, however, an essential heart tonic. The secretion of sweat is reduced by atropin. It is used for the suppression of night sweats, especially in pulmonary tuberculosis. A single dose given at night may be followed the next night by a larger dose if the first was not success- ful. The use of atropin for this purpose should be deferred as long as practicable and discontinued as soon as may be on account of its disturbing influence on digestion. Atropin produces dilatation of the pupil, paralysis of the accommodation and consequent disturbance of vision by a local action on the oculomotor nerve endings in the iris. When the drug is taken internally the effect is due to the 38 USEFUL DRUGS atropin circulating in the blood, and is bilateral. When the drug is applied locally the action is unilateral unless some general absorption takes place or some of the solution is introduced into the other eye by accident. To produce these actions on the eye, atropin is employed in solution dropped into the conjunctival sac for the pur- pose of facilitating the examination of the eye with the ophthalmoscope. The dilatation of the pupil also serves as a diagnostic measure in case of iritis as the pupil dilates irregularly in this disease. The wide dilatation of the pupil also tends to prevent its adhesion to the cornea or lens. Sufficient absorption may take place from lotions dropped into the conjunctiva to produce general symptoms and even to cause toxic effects. Atropin may also provoke acute glaucoma. Atropin is sometimes used externally in the form of oint- ment of belladonna for the relief of neuralgias, especially those in which pain results from local conditions of the nerve or surrounding tissues. It has been recommended for local use in the rectum to relieve the pain of hemorrhoids or fissure, for which purpose it is commonly prescribed in the form of suppositories. It is an old remedy for enuresis, but must be regarded in most cases as a purely empirical treatment to be used after investigation has shown the absence of organic lesions which may be remedied in other ways. It is used for vesical spasm due to irritable neck of the bladder. While the influence of atropin on the secretion of milk is not established, it is quite generally used locally in mam- mitis, galactorrhea and when it is desired to check the secretion. Dosage: Average 0.5 mg. or grain. Whenever it is used for any one of these purposes, the appearance of some of the other effects of-the drug constitute “untoward actions.” Unpleasant symptoms of this kind are produced in some people by the average dose stated. It is best, therefore, to begin with half this dose, 0.25 mg. or grain. Such dose may be repeated every two hours until distinct effects are produced. For the effect on the stomach the drug should be given in solution about fifteen minutes before the meal. For effect on night sweats it is given at bedtime. In cases of pylorospasm of infants, it may be injected hypodermically or given in feeding in doses of 0.05 mg. to 0.1 mg. or Yiooo to %oo grain. When atropin is being administered the patient or his friends should be warned of the possible appearance of slight toxic symptoms, the first indication of which is usually dryness of the throat. Some dimness of vision is also likely to be experienced. Serious poisoning usually begins with rapid pulse, flush- ing of the skin, talkative delirium, marked dilatation of the USEFUL DRUGS 39 pupils, some elevation of the temperature and dryness of the throat and skin. This is followed more or less quickly by unconsciousness, prostration, paralysis of the voluntary muscles and marked vasomotor paralysis. Balsamum Peruvianum (Bals. Peruv.), Balsam of Peru, U. S. P. (Peru Balsam).—A balsam obtained from a tree,. Toluifera pereirae. Properties: Balsam of Peru occurs as a viscid, dark brown liquid that does not harden on exposure to air. It contains resins and traces of cinnamic and benzoic acids. Action and Uses : Balsam of Peru is not used inter- nally, but is sometimes applied in ointment or in the form of alcoholic solution or mixed with castor oil or even undiluted as a stimulant to indolent wounds and ulcers to promote the formation of granulations and the process of cicatrization. Balsam of Peru is also used as a para- siticide in diseases of the skin, such as scabies. In scabies a 4 per cent, petrolatum ointment of balsam of Peru, with the same amount of sulphur, chalk and green soap may be used. It should be applied freely at night and in the morning over all of the affected areas. The strength of this mixture can be doubled in obstinate cases. Balsam of Peru can be painted over portions of the body at night, followed by a bath in the morning. In rare instances, balsam of Peru produces violent dermatitis. Extensive application may be followed by renal irritation. Balsamum Tolutanum (Bals. Tolu.), Balsam of Tolu, U. S. P. (Tolu Balsam).—A balsam obtained from Toluifera balsamum. Properties: Balsam of Tolu occurs as a yellowish-brown or brown plastic solid, becoming brittle when old, dried or exposed to cold. It is very soluble in alcohol, but nearly insoluble in water. The use of balsam of Tolu in medicine is largely restricted. It is one of the ingredients of compound tincture of benzoin. It is chiefly employed as a flavor or pleasant vehicle, especially for expectorants, in the form of: Syrupus Tolutanus (Syr. Tolu.), Syrup of Tolu, U. S. P. —A solution of the aromatic constituents of balsam of Tolu in syrup. Dosage: 15 Cc. or 4 fluidrams. Barbital, Barbital, N. N. R. (Diethyl-Barbituric Acid, Diethyl Malonyl Urea, Malourca, Veronal).—2, 4, diethyl pyrimidin, a ureid derived from diethylmalonic acid. Properties: Barbital occurs as a white, crystalline powder, odor- less, and having a faint, bitter taste. It is slightly soluble in water (1:150) and freely soluble in alcohol (1:8). 40 USEFUL DRUGS Actions and Uses : Barbital is quickly absorbed, espe- cially when it is given in solution. Suitable doses induce apparently without any other effect. The hypnotic action begins in about half an hour after its administration. In larger doses the temperature falls and animals show trembling and restlessness in their sleep. Many cases of poisoning, some fatal, occur from its indiscriminate use by the laity. The symptoms are long-continued stupor, some- times interrupted by excitement; the condition has been confused with uremia, epidemic encephalitis and opium poisoning. Skin rashes are of frequent occurrence. Dosage : 0.3 to 0.6 Gm. or 5 to 10 grains, best prescribed in form of powder to be given in hot fluid, such as hot milk, half an hour or an hour before bed time. Pills or tablets should be crushed before swallowing to insure absorption. Sodii Barbital, Barbital-Sodium, N. N. R. Sodium Diethyl-Barbiturate, N. N. R. Also known as veronal- sodium, is the monosodium salt of diethyl-barbituric acid. Properties: Sodium diethyl-barbiturate occurs as a white, crystal- line powder, odorless, and having an objectionably bitter, alkaline taste. It is freely soluble in water (1:5). Action and Uses : Barbital-Sodium has the same prop- erties as Barbital, but is more soluble. Dosage: 0.3 to 0.6 Gm. or 5 to 10 grains. Belladonnae Folia (Bellad. Fob), T,eavesr TT S. P. (DeadlyTSIightshacle Leaves, Belladonnae Folium, P. I.). —The dried leaves of Atropa belladonna, yielding, by the 1 process outlined in the Pharmacopeia, not less than 0.3 per cent, of the total alkaloids from belladonna leaves. Action and Uses : The active principles of belladonna act like atropin (which see). Jinctura Belledonnae Foliorum TTr. Bellad. Fol.), Tinctur'e'of".belladonna Leaves, u. S. P.—One hundred Cc. represents about,, 10 Gm. of the drug. Incompatibilities : The tincture should not be presc.rihed-- .with alkalies. Dosage : jj.75 Cc. or 12 minims, representing approxi- mately 02 mg. or grain of mydriatic alkaloids. Extractum Belladonnae Foliorum (Ext. Bellad. Fol.), * Extract of Belladonna Leaves, U. S. P.—A hydro- alcoholic extract of belladonna leaves in either a pilular or a powdered form. One gram represents about 4 Gm. of belladonna leaves. Dosage: 0.015 Gm. or lA grain, corresponding approxi- mately to 0.2 mg. or 14oo grain of mydriatic alkaloids. USEFUL DRUGS 41 Action and Uses : The application of extract of bella- donna to the skin secures a local anodyne effect which is employed for the relief of rheumatic and neuralgic nains and soreness,. It" ''s a serviceable application in acute Inflammatory conditions. Empi.astrtjm Rf.t.i.amnnar (F.mp. Bellad.), Belladonna Plaster, TJ. S. P.—An adhesive plaster representing approximately 30 per cent, of extract of belladonna. Plasters are not commonly made by pharmacists, but are supplied already spread by the manufacturers. They are usually prescribed by the to the area of skin to be covered. £V!»; . IIncttf.ntttm BELLAnoNNAEu (Ung. Bellad.), Belladonna Ointment, U. S. P.—Anointment containing 10 per cent, of extract of belladonna in a mixture of hydrous wool fat and benzoinated lard. Benzoinum (Benzoin.), Benzoin, U. S. P.—A balsamic resin obtained from several species of Styrax trees growing in the East Indies. The drug is now official as Sumatra Benzoin and Siam Benzoin. Properties: Benzoin contains benzoic acid (Siam benzoin), cin- namic acid (Sumatra benzoin) and resins which are soluble in alcohol and to some extent at least in oils and fats. Tinctura Benzoinae Composita (Tr. Benz. Co.), Com- pound Tincture of Benzoin, U. S. P.—A mixture of the alcohol-soluble constituents of benzoin, 10 Gm.; aloes, 2 Gm.; storax, 8 Gm., and balsam of Tolu, 4 Gm., in sufficient alcohol to make 100 Cc. Action and Uses : Compound tincture of benzoin is used as an application to the inflamed mucous membrane of the throat and bronchi by inhalation. It is soothing and acts as a stimulating expectorant. It is frequently administered by adding a teaspoonful to a glassful of boiling water and inhaling the vapor. It is also used as an addition to lotions of glycerin and water. It is useful as a stimulant and pro- tective for ulcers, bedsores, cracked nipples and fissures of the lips, anus, etc. Benzosulphinidum (Benzosulphinid.), Benzosulphinid, U. S. P. (Saccharin, Glusidum).—The anhydrid, CeHtSCh-CONH, of ortho-sulphamid-benzoic acid (Benzosulphonic-imid). Properties: Benzosulphinid is a white, crystalline powder, nearly odorless, having an intensely sweet taste even in dilute solutions. It is soluble in alcohol (1: 31), but only slightly soluble in water (1: 290). The addition of an alkali materially increases the solubility of saccharin in water by the formation of a salt, and it is often prescribed mixed with an equal quantity of sodium bicarbonate or in the form of a sodium salt known as “soluble saccharin.” Action and Uses : Benzosulphinid is used as a substitute for sugar in diabetes. It is about 500 times as sweet as sugab the usuaf quarter-grain tablet being about equal to a large “lump” of sugar. However, it tends to become dis- 42 USEFUL DRUGS tasteful on continued use. It is excreted almost unchanged, and does not produce any marked pharmacologic effect. It has no food value, therefore its substitution for sugar in ordinary food lowers the nutritive value. Saccharin is rendered more soluble by the addition of an equal weight of sodium bicarbonate. Betanaphthol (Betanaph.), Betanaphthol, U. S. P. (Naphthol). —A monohydroxyphenol (C10H7OH) of the naphthalene series. Properties: It occurs as colorless, or pale buff-colored, crystalline laminae or a crystalline powder, having a faint phenol-like odor and a pungent taste. It is only very slightly soluble in water (1:1,000), but is very soluble in alcohol (1: 0.8). Action and Uses: Betanapffthol is a powerful anti- septic. several times stronger than phenol. It is irritating to the skin or mucous membranes when applied in solution. If absorbed in considerable amount it may cause nephritis. It tends to destroy the red blood corpuscles and has been known to produce changes in the retina and opacity of the lens. Betanaphthol is applied externally as a parasiticide and antiseptic. Internally it has been much used as an intes- tinal antiseptic, but its utility is limited because of the danger of poisonous consequences from its possible absorp- tion. It has also been used as an anthelmintic for the treatment of hookworm disease. Dosage: 0.1 to 0.3 Gm. or IV2 to 5 grains. It is best given diluted with an inert substance, such as sugar of milk, in powder or capsules. Externally it may be used in the form of ointment, 1 to 10 per cent. Bismuthi Subcarbonas (Bism. Subcarb.), Bismuth Subcar- bonate, U. S. P.—A basic carbonate of bismuth of vary- ing chemical composition, some specimens being more basic than others. Properties: Bismuth subcarbonate is practically insoluble in water or alcohol. It is decomposed by hydrochloric or nitric acid, giving a copious effervescence of carbon dioxid and producing a chlorid _ or nitrate of bismuth which enters into solution. When such a solution is diluted with water the insoluble basic chlorid (oxychlorid or sub- chlorid) or basic nitrate of bismuth is precipitated. Bismuth subcar- bonate is readily decomposed by the acid of the gastric juice, but in this case while the acid is neutralized, an insoluble oxychlorid of bismuth remains, coating the stomach and thus acting therapeuti- cally in the same manner as the original subcarbonate would. Incompatibilities : It is incompatible with sulphids, sul- phur, acids and acid salts. Action and Uses: Bismuth subcarbonate acts like other insoluble salts of bismuth; and as antacid. For its uses see Bismuthi Subnitras. In roentgenography the subcar- bonate is preferable to the subnitrate because of the fact that it cannot give rise to nitrite poisoning, which has JffcCasi'onally happened when large doses of the subnitrate were used. Barium sulphate, however, has largely replaced the bismuth salt in roentgenography. USEFUL DRUGS 43 Dosage : 0.5 to 2 Gm., 8 to 30 grains. Much larger doses are necessary in roentgen-ray work. Bismuthi Subgallas (Bism. Subgall.), Bismuth Subgallate, U. S. P.—A basic gallate of bismuth of varying chemical composition, containing bismuth equivalent to from 52 to 57 per cent, of bismuth oxid. Properties: Bismuth subgallate occurs as an amorphous, bright yellow powder without odor or taste. It is practically insoluble in water and in alcohol, but is decomposed by hydrochloric, nitric or sulphuric acid if heated. It is also decomposed by alkali hydroxids. Incompatibilities : Bismuth subgallate is incompatible with acids, alkalies, sulphids and sulphur. Action and Uses : Bismuth subgallate was introduced for the treatment of skin diseases. Its action and uses are similar to those of Bismuth subnitrate, which see. Dosage: 0.25 Gm. or 4 grains. Bismuthi Subnitras (Bism. Subnit.), Bismuth Subnitrate, U. S. P.—A basic bismuth nitrate of varying chemical composition. Properties: Bismuth subnitrate occurs as a heavy, white, odorless and almost tasteless powder. It is practically insoluble in water and in alcohol. Hydrochloric acid of the usual strength of the gastric juice decomposes only a small amount in the course of several hours. Hydrochloric or nitric acid, if not too dilute, decomposes bismuth subnitrate, producing the chlorid or nitrate, which enters into solution; but when this solution is diluted with water the insoluble basic chlorid (oxychlorid or subchlorid) or basic nitrate (subnitrate) is precipitated. Incompatibilities : Bismuth subnitrate is incompatible with acids, tannins, sulphids and sulphur. With soluble carbonates and bicarbonates in the presence of water there is a liberation of carbon dioxid, a formation of insoluble bismuth compound, and the nitrate of the alkali metal. Hence, when bismuth is desired as an addition to a solu- tion of alkali, the subcarbonate should be used. With iodids a double decomposition has been noted with the formation of the red basic iodid of bismuth and the nitrate of the metal whose iodid was used. Action and Uses : Soluble bismuth compounds, as a rule, become converted in the presence of water into insoluble basic compounds. Most of the preparations used in medicine are already in the basic form. (As the action of bismuth preparations depends on the action of an insoluble powder, there is no object in prescribing a soluble salt.) All the insoluble compounds of bismuth used in medicine produce essentially the same effects. They are best administered in the form of powders, capsules, or cachets. The salt most frequently used is bismuth sub- nitrate; but since this sometimes produces poisonous 44 USEFUL DRUGS effects, the subcarbonate is preferable. Under some cir- cumstances the nitrate radical may be reduced to nitrite, especially by the putrefactive bacteria of the large intes- tine. Poisoning by nitrites is indicated by vasomotor paralysis, tachycardia and asphyxia due to the formation of methemoglobin. Bismuth subnitrate is not appreciably affected by the gastric juice and does not materially lessen its acidity. When given in considerable doses it coats the mucous membrane and acts as a mechanical protective. It thus prevents the action of the digestive secretions and of irri- tating foods or other substances on the mucous membrane. The same is true of its effect on the mucous membrane of the intestine. It is not absorbed in the stomach. It under- goes chemical changes in the intestine and is probably absorbed there to some extent though seldom in sufficient quantities to produce symptoms of poisoning. It is excreted by the kidneys and mouth, as well as by the cecum and other parts of the large intestine. It is turned black in the large intestine, probably from contact with sulphids. When applied to the skin it acts mechanically, but on wounds and ulcers, as on mucous membranes, it acts as a protective, astringent and antiseptic. It is absorbed from wounds to a larger extent than from mucous membranes. A number of cases of poisoning have been so caused. Bismuth subnitrate and other insoluble salts of bismuth are used in irritation of the stomach and intestines for their protective and astringent powers. They are useful to allay vomiting from gastric irritation. In the same manner they serve to check diarrhea. They are useful in hyperacidity and ulcer of the stomach by coating and protecting the mucous membrane. They are also employed in catarrh of the stomach and intestines. They may be given for the same purpose in ulcerative enteritis. Externally the subnitrate and subcarbonate are used as protective and antiseptic applications in skin diseases and as applications to ulcers or suppurating wounds and to promote the healing of old sinuses and fistulous tracts. In the latter case the bismuth is used in the form of a paste (33 per cent.) combined with petrolatum and wax. A num- ber of cases of poisoning have been reported due to the absorption of the bismuth from such application. Hence care must be exercised in its use and on the appearance of toxic symptoms, such as a blue line on the gums, headache, nausea and stomatitis, the bismuth should be removed from the fistula by the injection of warm olive oil. Dosage: 1 Gm. or 15 grains. For the treatment of peptic ulcer or in intestinal disease this dose may be fre- quently repeated (every 3 to 6 hours). Externally it is employed freely as a dusting powder or in ointment. USEFUL DRUGS 45 Caffeina (Caffein.), Caffein, U. S. P.—A feebly basic sub- stance obtained from the leaves of Thea sinensis or from the seeds of Coffea arabica and also found in other plants. Tea contains from 1 to 4 per cent, of caffein; coffee from 1 to 2 per cent. Properties: Caffein is trimethyl-xanthin, C5H(CH3)gN402. It occurs as white, silky, glistening needles, usually matted together in fleecy masses, odorless and having a bitter taste. It is soluble in water (1:46) and in alcohol (1:66). The solubility in water is materially increased by the addition of sodium benzoate or sodium salicylate. Action and Uses : Small doses of caffein act on the nervous system, stimulating the psychic centers, the respira- tory and vasomotor centers and the reflexes. It modifies the circulation by stimulating the heart and relaxing the vessels by direct action. The flow of urine is increased. Muscular contraction is facilitated and fatigue lessened. Excessive doses produce insomnia, nervousness, headache, palpitation and nausea or vomiting, especially in susceptible persons. They lessen the capacity for mental or muscular work. Toxic doses may produce tetanic convulsions and cardiac dilatation. Action on the Circulation : Caffein has a rather com- plex and, therefore, somewhat inconstant action. In thera- peutic doses the pulse may be quickened or slowed. The blood-vessels tend to dilate by tne peripheral action and to contract by the central action. The dilatation probably predominates in the kidney in most cases, but the blood- pressure may rise slightly by increased force and output of the heart. This increased output and lessened resistance tend to produce a more rapid flow of blood, and this results in an increased flow of urine. These effects make caffein especially efficient in some cases of cardiac dropsy, although it is generally inferior to digitalis. The cardiac stimulation is also useful in temporary cardiac weakness. Caffein is considered by some clinicians a most valu- able drug for the treatment of circulatory failure in acute infectious processes, such as pneumonia, peritonitis, scarlet fever, etc. On the other hand, some authors do not approve of the use of caffein as a cardiac remedy, but believe that its utility is confined to its diuretic action. A disadvan- tage in the use of large doses is the cerebral stimulation produced, which often prevents sleep. Caffein is useful in collapse by causing rise of blood- pressure and stimulating The respiration. It may be used in narcotic poisoning in the form of hot coffee, which may be administered by rectum, if the stomach is to be washed out meanwhile. It is especially valuable in opium poison- ing, and it may be used in alcohol poisoning on the same principle. It relieves some forms of headache, but in the congestive form it may increase the difficulty. It is excreted by the kidney partly under its own form, partly as mono- or dimethyl-xanthin. It does not increase the amount of uric acid in the urine. 46 USEFUL DRUGS Dosage : The dose of caffein varies from 0.06 Gm. to 0.3 Gm., or about 1 to 5 grains. A cup of the beverage made from a tablespoonful (15 Gm.) of ground coffee would contain from 0.1 to 0.2 Gm. or from IV2 to 3 grains of caffein. The alkaloid may be given in the form of powder or in capsules or cachets. Caffein sodiobenzoate should be chosen for hypodermic use. Caffeinae Sodio-Benzoas (Caff. Sod. Benz.), Caffein Sodio- Benzoate, U. S. P.—A mixture of equal parts of caffein and sodium benzoate. Properties: It is freely soluble (1:1) in water and soluble in alcohol (1:30). It is well adapted for administration in solution either by mouth or hypodermically. Dosage: 0.1 to 0.6 Gm. or about 1.5 to 10 grains. Calcii Carbonas Praecipitatus (Calc. Carb. Praec.), Precip- itated Calcium Carbonate, U. S. P. (Precipitated Chalk). —Calcium carbonate, CaC03, obtained by precipitating a solution of a salt of calcium by a soluble carbonate, collecting and washing the precipitate and drying. Properties: Precipitated calcium carbonate is a fine white powder without odor or taste. It is practicallly insoluble in water, but dis- solves to a considerable extent in water containing carbon dioxid. It is decomposed by acids, forming a salt of calcium and giving off carbon dioxid with effervescence. Action and Uses : Calcium carbonate neutralizes the acid of the gastric juice, calcium chlorid being formed and absorbed to some extent. If the contains no acid it may escape solution and absorption. When absorbed the action is that of the soluble salts of calcium, which will be described under Calcium Chlorid. Calcium carbonate is used chiefly as an antacid. For this purpose and as detergent it is employed as the base of many tooth-powders. It is given in the form of powder as an antacid and protective in gastritis, hyperchlorhydria and gastric ulcer. In prescribing it for such affections its constipating tendency should be borne in mind. It is especially appropriate to cases in which there is hyper- acidity with accompanying diarrhea and in diarrhea with acid fermentation. It may be used in skin diseases as a dusting powder to neutralize acid secretions and to pro- tect the skin. Calcium carbonate is the appropriate antidote to oxalic acid as it neutralizes the acid with the formation of the insoluble oxalate of calcium. It may be used as an anti- dote to other corrosive acids, though magnesium oxid is preferable, as it does not yield gas on reaction with acid. Dosage: From 1 to 3 Gm. or from 15 to 45 grains. Tea- spoonful doses can be given without fear of harm. One gram will neutralize 0.730 Gm. of absolute HC1, or approxi- mately the amount of free HC1 in 500 Cc., or 1 pint of stomach contents having 40 degrees of free acidity. Calcii Chloridum (Calc. Chlor.), Calcium Chlorid, U. S. P.— A hydrated form of calcium chlorid containing not less than 75 per cent, of CaCU. Properties: Calcium chlorid occurs as white, translucent fragments, which are odorless and have a sharp saline taste. It is very deliques- cent and should be kept in well-stoppered bottles. It is freely soluble in water (1: 1.2) and also in alcohol (1: 10). Incompatibilities : Soluble carbonates, phosphates and sulphates produce a precipitate of the corresponding insol- uble salts of calcium. Action and Uses: Calcium salts depress the entire muscular and nervous system, when applied directly to these tissues, or inject eel into the blood stream. If the calcium concentration of the serum is normal, calcium salts administered by mouth or even intravenously are not absorbed or rapidly excreted. The soluble salts are con- verted in the intestine into the insoluble carbonate or phos- phate or into soaps. When the calcium concentration of the \serum is low, a&Jn infantile tetany, the continued adminis- tration the chlorid, will raise the concentration to a greater or less extent and cause a cessation of symptoms. But unless the cause of the con- dition is removed, the concentration sinks rapidly after withdrawal of the calcium. Calcium is believed to diminish inflammatory effusions and appears to be of some benefit in urticaria and serum rashes. There are grounds for believing that calcium diminishes or prevents some of the unpleasant reactions from ars- phenamin. Calcium bromid- appears to be somewhat more effective against epilepsythan the other bromids. The of calcium in blood coagulation has led to its use in hemorrhagic conditions, such as hemophilia, purpura, the intestinal hemorrhage of typhoid fever, etc. It is very improbable that it could be effective, since the blood in these conditions always contains an abundance of calcium. Both the experimental and the best clinical, evi- dence fail to establish its efficacy. UrtL'&.th USEFUL DRUGS 47 Dosage: From 0.5 to 1.0 Gm. or from 8 to 15 grains. Calcium chlorid is best administered in dilute solution sweet- ened with syrup or elixir. Calcii Lactas (Calc. Lact.), Calcium Lactate, U. S. P.—The hydrated form of calcium lactate. Contains when dried to constant weight not less than 98 per cent, of Ca (C3H5O3) 2. Properties: Calcium lactate occurs in white crystalline masses or powder, odorless and nearly tasteless. It is soluble in water (1:20), but very slightly soluble in alcohol. Incompatibilites : Calcium lactate is incompatible with carbonates, sulphates and other compounds forming insol- uble calcium salts. 48 USEFUL DRUGS Action and Uses: Calcium lactate has the pharmacologic action of other soluble calcium salts (see Calcium Chlorid) but is less irritating than the chlorid and, therefore, espe- cially suitable for hypodermic use. Dosage: From 1.0 to 2.0 Gm. or from 15 to 30 grains. Calx, Calcium Oxid, U. S. P. (Lime, Quicklime).—Contains when freshly ignited not less than 95 per cent, of CaO. Properties: Calcium oxid occurs as hard, white or grayish-white masses, which, in contact with the air, gradually attract moisture and carbon dioxid and fall to a white powder; it is odorless and has a caustic taste. Calcium oxid is converted into calcium hydroxid on the addition of water, and this is slightly soluble in cold water (1: 840), less soluble in hot water and practically insoluble in alcohol.' Milk of lime is calcium hydroxid mixed with winter in the proportion of 1 quart of lime to 4 of water. , Action and Uses: Quicklime is a fairly active germicide. On account of its cheapness it is much used as a disinfec- tant. It is especially useful for the disinfection of excreta. Freshly prepared milk of lime may be added in volume equal to that of the material to be disinfected, the mass thoroughly mixed and allowed to stand for two hours before disposal. A still better method of using it is to add enough quicklime to make the excrement boil. Milk of lime or whitewash is a serviceable application to privies or to the walls of infected rooms. Liquor Calcis (Liq. Calc.), Solution of Calcium Hydroxid, U. S. P. (Lime-water).—A saturated solution of calcium hydroxid containing about 0.14 per cent, of Ca(OH)i. Properties: Lime-water is a clear, colorless liquid without odor, and has an alkaline, bitter taste. Lime-water absorbs carbon-dioxid from the air, readily forming the insoluble calcium carbonate, and leaving the solution weaker in consequence. The Pharmacopeia gives a convenient method of assay, and there is no excuse for the pharma- cist who dispenses an inferior preparation. The strength of lime- water should be preserved by keeping an excess of lime in the bottom of the container. When the lime-water is to be used the clear super- natant liquid should be decanted. Incompatibilities : Lime-water is incompatible with acids and with carbonated, or ordinary hard water. Action and Uses: Lime-water is antacid and astringent and is often used as an addition to”mTik for botK adults and children, to favor fine curdling. The usual proportion is 1 of lime-water to 4 of milk, but a mixture of equal parts may be given. This is administered in small doses to allay nausea and vomiting, as well as diarrhea.” Lime- "whter is used- externally in TFTp treatment of burns. Dosage : 15 Cc. or about 4 fiuidrams, containing approxi- mately 0.02 Gm. or Va grain of calcium hydroxid. USEFUL DRUGS 49 Calx Chlorinata (Calx Chlorin.), Chlorinated Lime, U. S. P. (Chlorinated Calcium Oxid, Bleaching Powder, often improperly called “Chlorid of Lime”).—A variable com- pound resulting from the action of chlorin on calcium hydroxid. It should contain not less than 30 per cent, of available chlorin, that is, chlorin which is set free by the action of an acid. Properties: Chlorinated lime occurs as a white or grayish-white granular powder, having a chlorin-like odor, and a repulsive saline taste. It is only partially soluble in water or alcohol. Action and Uses: Chlorinated lime is a disinfectant, A 5 per cent, solution is a convenient strength for ordP nary “"use. it is~beihg used quite extensively as the source of chlorin for treating contaminated drinking waters. The fresh solution of about 0.5 per cent. strengtK should be added to the water to be treateHPTn the proportion of about 25 gallons per million gallons of water, the propor- tion varying with different waters. jdypochlorites in acid, alkaline and slightly alkaline solu- tionsEave"been found useful in the treatment of infected wounds. The *icid solutioiijCLorrain Smith’s) “Eusol” may be pre- pared by shaking 12.5 Gm. of chlorinated lime and 12.5 Gm. powdered boric acTcT with 1 liter of water, allowing the mixture to stand for some hours, and filtering. Alkaline and slightly alkaline preparations of hypochlorites are de- scribed below. Unless strongly alkaline, solutions of hypo- chlorites decompose rapidly. Liquor Sodae Chlorinatae (Liq. Sod. Chlorinat.), Solu- tion of Chlorinated Soda, U. S. P. (Labarraque’s Solu-_. tion).—An aqueous solution of sodiunThypocHIorite and sodium chloricf containing at pef cent, of avail- able chlorin. It is made by decomposing a solution of chlorinated lime with sodium carbonate and removing the insoluble calcium carbonate formed. Surgical Solution of Chlorinated Soda, N. N. R., of Carrel and Pakin contains 0.43 to 0.4.8 per cent, of available chlorine, free from caustic alkali, it may be prepared by decomposing chlorinated lime with specified amounts of sodium carbonate and sodium bicarbonate in the presence of water. After the precipitate formed has subsided, the supernatant solution is filtered off and adjusted to the required alkalinity and content of available chlorine. Action and Uses: Solution of chlorinated soda, like chlorinated lime, is used chiefly as a disinfectant. Diluted with, from 15 to 20 parts of water it may~lie”employed as a spray, gargle or wash? Dosage: 1 Cc. or 15 minims. USEFUL DRUGS Camphora (Camph.), Camphor, U. S. P.—A ketone, obtained from Cinnamomum camphora. It is dextro-rotatory. Properties: Camphor occurs as white, translucent masses of a tough consistence and having a characteristic odor and a pungent aromatic taste. It is readily pulverizable in the presence of a little alcohol, ether or chloroform. It is very slightly soluble in water, but freely soluble in alcohol, ether, chloroform and in fixed and volatile oils Action and Uses : Camphor stimulates the central ner- vous system, especially the medullary centers, and the circulation. In toxic doses it produces "delirium followed Vy unconsciousness with epileptiform convulsions. Camphor tends to increase the blood pressure. The effects on animals are complex and rather inconstant. Many clinicians believe that camphor improves (.the pulse in impending cardiac collapse, probably by cardiac stimula- tion ; others believe!? ineffective. It is used as a circulatory and respiratory stimulant in cases of collapse, syncope, cardiac failure, etc., bv-hypodermic -administration.of from 0.5 to 1 Cc. of a 10 to 20 per cent, sterile solution in olive or almond oil injected at short intervals for a few doses. Solutions in~liquid petrolatum should not be used. The antiseptic action of camphor is utilized in gargles and mouth washes. It is also given in dyspepsia as a carminative, and is used in the first stage of colas and other infections of the respiratory tract. Locally camphor is mildly irritant, causing a loss of .tone of the peripheral blood vessels, and thus producing redness of the slcln. It is also a local analgesic. It is employed, for its mild rubefacient and couriterirritant effects, as an ingredient "of liniments. Powders containing camphor are antipruritic. Dosage: 0.10 Gm. or about 1 Vz grains. When a prompt cardiac or central action is demanded, much larger doses may be required. For oral administration, it may be given in an oily or alcoholic solution or in pills, capsules or cachets. j \ Aqua Camphorae (Aq. Camph.), Camphor Water, U. S. P. —A saturated solution of camphor in distilled water. It is a very weak preparation. Camphor water is often used as a vehicle for collyriaXvlP) Dosage: 10 Cc. or about 2Vz fluidrams (containing 0.04 Gm. or Vz grain 61 camphor). Spiritus Camphorae (Sp. Camph.), Spirit of Camphor, U. S. P.—One hundred Cc. contain 10 Gm. camphor in alcohol. Dosage: 1 Cc. or 15 minims. Linimentum Camphorae (Lin. Camph.), Camphor Lini- ment, U. S. P. ('Camphorated Oil).—One hundred Cc. contain 20 Gm. camphor in cottonseed oil. This prepara- tion should not he used for hypodermic injection. USEFUL DRUGS 51 Cantharis (Canthar.), Cantharides, U. S. P. (Spanish Flies, Russian Flies).—The beetle Cantharis vesiatoria, yield- ing not less than 0.6 per cent, of cantharidin. Action and Uses : Cantharides is very irritating to the intestinal canal, producing hyperemia of the mouth and throat and vomiting. It is readily absorbed from the intestinal canar~arfd produces ma_rked irritation-of the kidneys, affecting, at tirst, fHe glomeruli and subse- quently the urinary tubules. In its passage through the urinary channels, it irritates the mucous membranes of the bladder and urethra and produces a desire to urinate, some- times amounting to is also a local irritant to the skin and produces blisters. It may be absorbed fipm the skin in sufficient quantities to cause nephritis. The internal use of cantharides is dangefOTEf. " The local irritant action of cantharides is the basis of its use for the treatment of baldness, for which it is used in the form of tincture greatly diluted with alcohol (from 1:15 to 1: 30) or in ointments, but it is of little benefit in that condition. The chief use of cantharides is as a vesi- cant, for which purpose "canthandesplasters (see befowj "are”employed. It is contralndicatedUffnepliritis: and when vesication is desireer cent, sodium bicarbonate. A trace of epinepTirln may be added (J drops of 1: 1,000 solution per injectionX to diminish absorption or bleeding. Cocain itself produces some vasoconstriction, but the synthetic anesthetics do not constrict. For throat and nose operations, the difficulty of procur- ing prolonged contact has led to the use of strong solutions of cocain, 10 to 20 per cent., or a trace of the powdered drug on the"~pomt' 61 a probe. Epinephrin is usually added (1: 50.1)00) . The strong solutions oF"powder must be used only on small areas, procain being used for extensive operations. For deeper 'hneratlons, the local anesthetic is injected, first into the skin proper: then in the neighbor- hood of the sensory nerves~Tfiat supply the area, so as to anesthetize their distribution (conduction anesthesia). For this purpose, procain is equal to cocain in efficacy, and is very much less fikely'Tolead to poisoning. It fs used in dilutions of Vz of 1 per cent, to 2 per cent., preferably made with 1 per cent, of potassium chlorid, with the addi- tion of 1 mg. of epinephrin per gram of procain. Foi spinal anesthesia, tropacocain has largely been used iff/z to 1 Cc. of 5 per cent.) ; procain probably answers equally weTTr'~Potassium"chIbnd, 1 per cent., can be used as diluent. Toxic Effects.—These are likely to occur if the drugs are rapidly absorbed, whereas slow absorption is relatively harmless. The safety depends on the prompt destruction of these substances in the body. The destruction of 62 USEFUL DRUGS cocain is relatively slow, and this accounts for the more frequent accidents. The toxic svipolame are similar for all the local anesthetics. They begin with excitement, .ver- tigo, pallor, palpitation, vomiting and and progress rapidly to collapse, sometimes with brief~cdnvulsions; Death may occur in a few minutes. The treatment is by artificial respiration and the injection of epinephrin. Cocain Habit: Coain was formerly used for its stimu- lant properties, as it produces in susceptible individuals a condition of psychic excitement. Such a use, however, easily leads to habituation. Cocain habit is especially difficult to treat, because sudden withdrawal is followed by distressing and even dangerous symptoms; whereas continuance of its use results in chronic poisoning, espe- cially characterized by psychic deterioration. The Har- rison Narcotic Law1 is of assistance in lessening the danger of cocain habituation as it makes refilling of pre- scriptions for cocain impossible. Dosage: The internal dose is stated as 0.015 Gm., or 14 grain, but theHrug is rarely used other than locally. T-'hedosage for local application is given above. Cocain solutions do not keep well, although they may be steri- lized by brief boiling. The substitutes form stable solu- tions. Codeina (Codein.), Codein, U. S. P.—An alkaloid obtained from opium or prepared from morphin "bymethylation. Properties: Codein occurs as colorless translucent crystals or a crystalline powder, odorless and having a faintly bitter taste. Codein is slightly soluble in water (1:120), and freely soluble in alcohol (1:2). Action and Uses : Codein is algesic, hypnotic and sedative. Its effects resemble morphin, except that it is veryTtiuch less likely to produce habit. It should, there- fore, be preferred wherever feasible; especially in cough, where adequate doses are equally effective. Its analgesic and hypnotic effects are more feeble. It is preferred by some authors in diabetes. Prescriptions for codein must conform to the provisions of the Harrison Narcotic Law.1 Dosage: 0.03 Gm. or Vz grain. 1. The Harrison Narcotic Law requires that the prescriber shall state on the prescription the patient’s name and address, as well as his own name and address and the number of his registration license. The latter is obtained from the U. S. Department of Internal Revenue on payment of an annual registration fee. If the patient is suffering from an incurable disease or is an aged or infirm addict, these facts, together with the patient’s age, must be given on the prescription, together with a statement by the physician that the drug is necessary to sustain life. The following drugs whose use is restricted by the Harrison Law are dealt with in this volume: Cocain, codein, morphin and opium. USEFUL DRUGS 63 Codeinae Phosphas (Codein. Phos.), Codein Phosphate, U. S. P.—The phosphate of the alkaloid codein. Properties: Codein phosphate occurs in white, needle-shaped crystals, or as a crystalline powder. It is freely soluble in water (1:2.3) and only slightly soluble in alcohol (1:325). It is preferred for hypodermic use. Dosage: 0.03 Gm. or Vi grain Codeinae Sulphas (Codein. Sulph.), Codein Sulphate, U. S. P. —The sulphate of the alkaloid codein. Properties: Codein sulphate occurs in needle-shaped crystals, or as a crystalline powder. It is soluble in water (1:30), and very slightly soluble in alcohol (1:1,280). Dosage: 0.03 Gm. or grain. It may be prescribed in a cough mixture such as the following: fj Codeinae sulphatis 0.45 Gm. Ammonii chloridi 6.0 Gm. Syrupi pruni virginianae ad 120.0 Cc. M. Sig.: A teaspoonful every four hours. Colchici Semen (Colch. Sem.), Colchicum Seed, U. S. P. (Colchici Semen, P. I.).—The seed of Colchicum autum- nale, yielding not less than 0.45 per cent, of colchicin. Action and Uses : Colchicum produces marked irrita- tion of the intestines, leading to looseness of the bowels with much pain and watery stools. It may result in severe enteritis and collapse"! The collapse is believed to be due to the intestinal irritation and not to a central action. It also produces irritation of the kidney, which may lead to severe nephritis. Colchicum seed is said to be antineuralgic and analgesic. By many it is considered to be a jspecific gout, controlling the pain and cutting short the attack. It may be given to prevent the occurrence of gouty attacks, and it is recommended by some to continue it in smaller doses after the attack. It often fails, and there is wide divergence of opinion as to its usefulness. Tinctura Colchici Seminis (Tr. Colch. Sem.), Tincture of Colchicum Seed, U. S. P. (Colchici Tinctura, P. I.).— One hundred Cc. represent 10 Gm. colchicum seed in approximately 55 per cent, alcohol; it should contain about 0.04 per cent, of colchicin. It is similar to but not identical with the international standard tincture of colchicum — _ / .- t *j f Dosage : 2 Cc. "or_ 30-minims. In acute gout the dose is from 10 to 30 minims of the tincture once every four hours until some decided evidence of its action, such as nausea or slight purging, is induced. Severe purging should be avoided. Colchicum is of little value in rheumatism. USEFUL DRUGS Collodium (Collod.), Collodion, U. S. P.—A solution con- taining, in 100 Cc., 4 Gm. of pyroxylin, or guncotton, in a mixture of 3 volumes of ether and 1 volume of alcohol. It is used as a protective and a vehicle chiefly in the form of: Collodium Flexile (Collod. Flex.), Flexible Collodion, U. S. P.—A mixture of collodion with camphor (2 per cent.), and castor oil (3 per cent.). The addition of the small proportion of castor oil makes the resulting film elastic and more tenacious. Colocynthis (Colocyn.), Colocynth, U. S. P. (Colocynth Pulp, Bitter Apple, Colocynth Apple).—The dried pulp of the fruit of Citrullus colocynthis, without admixture of more than 5 per cent, of seeds or more than 2 per cent, of epicarp. Colocynth belongs to the class of one-time popular hydragogue cathartics whose use appears to be on the decline. It is used in making: Extractum Colocynthidis (Ext. Colocynth.), Extract of Colocynth, U. S. P. (Powdered Extract of Colo- cynth).—Represents four times its weight of colocynth pulp. Dosage: 0.03 Gm. or % grain. Creosotum (Creosot.), Creosote, U. S. P. (Creasote).—A mixture of phenols and phenol derivatives, chiefly guaiacol and creosol, obtained during the distillation of wood-tar. Properties: It occurs as a colorless or slightly yellowish, highly refractive, oily liquid, having a penetrating smoky odor and a burn- ing, caustic taste. Creosote is slightly, but not completely soluble in water, and miscible in all proportions with alcohol, ether or fixed or volatile oils. Owing to its disagreeable odor and taste, it is seldom administered in the form of solution or mixture. Action and Uses: Creosote acts similarly to phenol. It is antiseptic and is one of the few drugs which appear to have a just claim to be useful as gast.ro-intestinal anti- septics. It is used to some extent locaTTyTm dilute form, for its antiseptic and anesthetic action. A droplet applied to the cavity of a carious tooth will usuallv’relieve toothr ache temporarily. It has been given as a stimulant expec- torant in chronic bronchitis and in tuberculosis. In the latter disease it has been credited with almost specific value. Experiments, however, show that it does not affect the viability of the tubercle bacilli in the lungs. Its favorable action in tuberculosis is due to gastro-intestinal antisepsis, its expectorant action and its antipyretic power. Less reliance is placed on it than formerly:' Dosage: 0.25 Cc. or 4 minims three times daily. It is preferably administered massed with glycyrrhiza or other- wise diluted, in the form of pills or capsules. If it impairs the appetite and disturbs digestion its use should be aban- doned. USEFUL DRUGS 65 Cresol, Cresol, U. S. P.—A mixture of isomeric cresols, CeH4.CH3.OH, obtained from coal tar, freed from phenol, hydrocarbons and water. Properties: Cresol occurs as a colorless or yellowish to brown- yellow refractive liquid, having a phenol-like odor and becoming darker on exposure to light and air. It is soluble.in water (1:50) and miscible in all proportions with alcohol, petroleum benzin, ether and glycerinit is miscible with soap solutions and with solutions of alkali hydroxids, yielding an economical form of disinfectant. Actions and Uses : Cresol is an active noison resem- bling phenol in its effects. Its germicidal power, is approximately four times as great as that of phenol. Dosage: 0.05 Cc. or 1 minim. As a disinfentant-it may be used in solutions varying in strength from % to 1 per cent. It is usually employed in the form of: " Liquor Cresolis Compositus (Liq. Cresol. Co.), Com- pound Solution of Cresol, U. S. P.—A mixture of equal parts of cresol and a solution of soap. Action and Uses : Compound solution of cresol has about twice the germicidal power of pure phenol. On account of Its saponaceous character it is much used for the dis- infection of the skin, for lubricating the hands, and for vaginal_ douches in the form of aqueous solutions contain- ing from I to 5 per cent. Cupri Sulphas (Cupr. Sulph.), Copper Sulphate, U. S. P. (Cupric Sulphate).—Contains not less than 98.5 per cent, of CUS04+5H.0. Properties: Copper sulphate forms large, transparent, deep-blue crystals, odorless, having a nauseous, metallic taste. Copper sulphate is freely soluble in water (1: 2.5), but only slightly soluble in alcohol (1: 500). Incompatibilities : Copper sulphate is incompatible with soluble salts jof lead, which precipitate the insoluble sulphate of lead; with fixed alkalies and alkaline carbon- ates, which precipitate copper hydroxid or copper carbon- ate ; with iodids. which form insoluble cuprous iodid with liberation of iodin, and with vegetable astringents con- taining tannin. Action and Uses: Copper sulphate is astringent in small doses and irritant in large doses, producing nausea and vomiting. Even minute amounts exert a germicidal actTdn'Tn water containing algae, fungi or bacteria of the colon group; but when organic matter is abundantly present the germicidal action is greatly weakened. Externally copper sulphate acts as an astringent, stimulant or mild* caustic according to the strength of the application.. Copper sulphate is employed as a mild caustic in tra- choma. It was formerly much used as“an"a[§Tfingent in conjunctivitis. It is sometimes administered as an emetic but is not to be recommended except in phosphorus poison- ing, in which it acts by rendering the phosphorus insoluble. It is occasionally prescribed for chronic diarrhea. 66 USEFUL DRUGS Dosage: As an astringent in diarrhea, 0.01 Gm. or % grain; as an emetic, 0.25 Gm. or 4 grains, not to be repeated. As~ a” caustic it is applied as the solid crystal or in pencils made by fusing 1 part of potassium alum and 2 parts of copper sulphate. When applications are made to trachomatous lids the affected parts of the everted lids should be touched lightly with the copper stick and the eye washed out afterward with lukewarm water. Collyria containing from 1 part in to 1 in 100 may be used. Dichloramin-T. — Paratoluenesulphondichloramid, N. N. R. —CH3C6H4.SO2NCI2.—The dichloramid of paratoluene- sulphonic acid, CHa.CalL.SOaOH. • Action and Uses: Dichloramin-T is an effective germi- cide through its content of active chlorin. IFTs sparingly soluble in water by which it is easily decomposed; it is soluble in chlorcosane (chlorinated paraffin oil). The dichloramin-T-chlorcosane solutions produce a gradual, sustained antiseptic action. Dichloramin-T is more irritant than chloramin-T, but also more solvent. It should not be administered internally. Dichloramin-T is claimed To' be useful in the prevention and treatment of diseases of the nose and throat; it has been used with success as an applby catioriTd~wduncrr. *“ ' Dosage: Dichloramin-T dissolved in chlorcosane, is used in concentrations of from 2 to 10 per cent. When used as a spray, a 2 per cent, solution of dichloramin-T is employed; for application to infected wounds a 3 to 10 per cent, solution of dichloramin-T. (The solution of dichlor- amin-T is stable for a short time only.) DIGITALIS SUBSTANCES.—This group includes as its most important members digitalis and strophanthus. Others of the group are of minor importance. These drugs the tone of__ the heart and stimulate the .vagus mechanism. InTFns way they slow and regulate the heart- beat, increase the cardiac output, and thus improve the circulation without affecting the blood pressure directly. They are employed to secure compensation in cardiac insuf- ficiency, and are useful whenever the systole of the heart is insufficient on account of incomplete exertion of its muscular power. They cause the heart to empty itself more completely and prevent it from dilating excessively in diastole. They are especially valuable in auricular fibrillation, by partially blocking the auriculoventricular conduction. They relieve the ventricle of following many of the superfluous auricular contractions and permit the ventricle to contract at a slower rate and with more regular rhythm. This greatly improves the cardiac out- put, which in turn relieves the congestion, dyspnea, dropsy and other distressing symptoms, and increases the flow of urine. On the other hand, they are contraindicated , in-naxtia] hpart Overdoses produce nausea, vomit- jng, diarrhea, ITeadache, cardiac irregularities and heart- USEFUL DRUGS 67 block,. The emetic action of ordinary doses is not due to local irritation of the gastro-intestinal tract, as formerly supposed, but to the action on the heart itself; hence it can- not be avoided by rectal or intravenous administrations, or by the use of special preparations or isolated principles. When administered by mouth their absorption is slow and somewhat uncertain and their effects are correspondingly delayed and cumulative, so that they must be carefully watched. Digitalis (Digit.), Digitalis, U. S. P. (Foxglove, Digitalis Folium, P. I.).—The dried leaves of Digitalis purpurea. When extracted and assayed biologically the minimum lethal dose should be approximately the equivalent o| 0.6 mg. of digitalis for each gram of body weight of the frog. Digitalis contains a number of glucosidal principles, the most important of which are digitoxin, digitalin and digitalein, the actions of which are essen- tially similar. A number of preparations of these glucosids are on the market, but many are of uncertain compqsition, and since they have not yet demonstrated any superiority over good preparations of the whole drug, the latter are to be preferred. Digitalis is a fairly stable drug, and those preparations that are made' with' Tiigh"percentages of alcohol retain their full activity with little alteration for several years. Aqueous solutions deteriorate more rapidly. Action and Uses: Digitalis, either in substance or as one of the preparations referred to hereafter, is a cardiac Jgvlc. and indirectly diuretic. (See the preceding.)"' * Digitalis is useful whenever the systole of the heart Js insufficient on account of incomplete exertion of its mus- cular power. It causes the heart to empty itself more completely and prevents it from dilating excessively during diastole. It is useful in myocardial insufficiency and symp- toms arising therefrom, such as edema and dropsy, and in auricular fibrillation. b'W ±l'ft!‘ Dosage : 0.06 Gm. or 1 grain, in powder or pill three times daily after meals. Digitalis is a drug of variable strength, and hence a physiologically standardized prepara- tion should be used. No perceptible effect is generally to be expected in less than twenty-four hours after oral administration. The effect can be hastened by the inten- sive use of larger doses; but this requires very close super- vision. Amelioration of symptoms and, in auricular fibrillation, a slowing of the pulse indicates the beginning of its physiologic action; nausea and vomiting coming on during the administration of the drug are usually due to a com- mencing toxic action. If the vomiting is due to other causes, the administration of the digitalis may be continued best by a different channel, such as the rectum or the veins, 68 USEFUL DRUGS or by hypodermic injection. For hypodermic and intrave- nous injections special preparations must be used, for which New and Nonofficial Remedies should be consulted. Overdosage: As an overdose of digitalis or cumulative effects are most readily detected by a study of the pulse and heart action, a patient who is given digitalis should be kept under close observation. Symptoms of digitalis poisoning are shown by pajisea and vomiting', sometimes witlTlitadominal pain and diarrhea, a very slow pulse, or heart block followed by a rapid and feeble one, and marked prostration. The heart may become irregular and sudden changes in position may result in great aggravation of the condition and sometimes in sud- den death on slight exertion. On the occurrence of any of these symptoms, the administration should be suspended. As a rule, the conditions wffiich require active doses of digitalis also require absolute rest in bed. Aside from its use in powder or pills, digitalis is used largely as: Tnfusum Digitalis (Inf. Digit.), Infusion of Digitals, U. S. P.—One hundred Cc. represents the water-soluble constituents of 1.5 Gm. digitalis in a mixture of water and cinnamon water. It should be freshly prepared. Dosage: 4 Cc. or 1 fluidram. 'Tinctura Digitalis (Tr. Digit.), Tincture of Digitalis, U. S. P. (Digitalis Tinctura, P. I.).—One hundred Cc. represent 10 Gm. digitalis in about 70 per cent, alcohol. Assayed biologically the minimum lethal dose should not be greater than 0.006 Cc. for each gram of body weight of the frog. Dosage : 0.5 Cc. or 8 minims. Elaterinum (Elaterin.), Elaterin, U. S. P.—A neutral prin- ciple obtained from elaterium, a substance deposited by the juice of the fruit of Ecballium elaterium. Properties: Elaterin occurs as minute, white hexagonal scales or prismatic crystals, without odor and having a slightly acrid, bitter taste. It is practically insoluble in water and only slightly soluble in alcohol (1:325). The commercial substance is probably a mixture of prin- ciples. According to clinical observations, many lots of the drug have proved practically inert. Elaterin should not be confounded with elaterium. Action and Uses: Elaterin is a powerful cathartic, causing profuse watery evacuations with com- paratively little pain. Tt Ts used Tn "dropsy, convulsions, puerperal eclampsia, etc. If used too freely or in debilitated persons it may produce dangerous weakness. Dosage: 0.003 Gm. or grain. USEFUL DRUGS 69 Trituratio Elaterini (Trit. Elaterin.), Trituration of Elaterin, U. S. P., which is 10 per cent, in strength. Dosage: 0.03 Gm., or y2 grain. It is generally prescribed in the form of: Emetinae Hydrochloridum (Emet. Hydrochl.), Emetin Hydro- chlorid, U. S. P.—The hydrochlorid (C30H44N2O4.2HCI with not more than 19 per cent, water) of the alkaloid emetin obtained from ipecac. Properties: Emetin hydrochlorid occurs as a white or very slightly yellowish crystalline powder, freely soluble in water or alcohol. Action and Uses : Emetin acts similarly to ipecac, but is relatively more nauseant and less emetic: it causes rela- tively less renal irritation, but more cardiac depression. Emetin 'bydrdch 10ricl has been found "valuable in amebic dysentery and possibly other diseases due to pathogenic amebaST" Dosage: In ameb]c_ dysentery, 0.03 Gm. (Vz grain) gen- erally given subcutaneously or intramuscularly. Expec- torant, from 0.005 to 0.01 Gm. {}/% to % grain). From 0.01 to 0.02 Gm. (Yq to Yz grain), given by mouth, causes emesis. The hypodermic administration often fails to reach the encysted amebas, which are found in the intestines, espe- cially in chronic cases in the carriers. It then becomes advisable to resort to the oral administration, using either salol-coated pills of ipecac, or the Emetin-Bismuth Iodid (N. N. R.), which is only slightly soluble in the stomach, but which dissolves freely in the intestines. The usual dosage of this is 0.2 Gm. (3 grains) daily for four days. It may be prescribed in capsules. Epinephrina (Epinephrin.), Epinephrin, N. N. R. (Adrenalin). —The blood pressure raising principle of the suprarenal gland, also produced synthetically (1-suprarenin), is official in the British, French, Italian and Belgian Pharmacopeias as adrenalin and in the German Pharma- copeia and the supplement of the Netherlands Pharma- copeia as suprarenin. Properties: Chemically epinephrin is described as 1, 2-dihydroxy- benzene, C6H3(OH)2(CHOH.CH2NHCH3), a substance with feeble basic properties, occurring in the suprarenal gland of the sheep or other animal. As commercially obtained it is a finely crystalline white or yellowish powder, odorless and slightly bitter. The free base is practically insoluble in water and is usually dispensed in the form of an aqueous solution, 1: 1,000, of one of its salts, generally the hydrochloric!. Epinephrin is oxidized readily and is thus destroyed in dilute alkaline solution. Action and Uses : Epinephrin excites the sympathetic neryes so as to produce a variety of effects according to tR*e function of the part supplied by the nerve. It causes a sudden rise of blood pressure by contraction of the arterioles. The pulse is slowed as the result of the increased blood pressure. The heart is stimulated directly, but the resistance offered by the contraction of ’ the blood 70 USEFUL DRUGS vessels is such that at times the heart is unable to over- come it and suffers passive dilatation. The rise of blood- pressure which results from the action of this drug is very prompt but transient, lasting, as a rule, not more than five murafcs * ■ ■“'''Epmephrin dilates the pupil. It inhibits the peristaltic movements of the intestine and increases the secretion of saliva and other glands which receive a nerve supply from the sympathetic. It relaxes bronchial spasm. Epinephrin mav_produce hyperglycemia and glycosuria, and experiments on rabbits indicate that its continued use may cause a degeneration of the internal coats of the arteries. When given by the mouth it produces no evident effect on the general circulation, hut it is readily absorbed into the mucous membranes of the nose, mouth, urethra, vagina and rectum, producing local contraction of the. blo.od vessels. Very large doses if" to 4 me\V are tolerated when given hypodermically on account of the slow absorption due to the constriction of the blood vessels of the part m which it is injected. Such injection may cause necrosis of the skin, owing to impairment of nutrition from vascular spasm, especially if part of the dose is given intracutaneously. Hvoersensitiveness occurs in certain “pervous” individ- uals!In sucH~"peisuns the intramuscular injection ot 0.5 mg. is followed by tremors, palpitation, apprehensive sensa- tions, heightened blood pressure and increased heart rate.' Epinephrin acts promptly after intravenous injection, but is rapidly destroyed. Intravenous injection is dangerous, unless the dose is very minute, or a larger dose is given in great dilution and very slowly. Intramuscular injection is intermediate in effect between subcutaneous and intrave- nous injections. The chief therapeutic use of epinephrin is to constrict the peripheral blood vessets~~by local application. A period of sec.oHdaxy; dilalation follows. In this way it may be used to diminish hyperemia of the conjunctiva, to reduce /Swelling oFTtre turbfnafed bodies, to arrest hemorrhage from the mucosa of the upper respiratory tract, and in operations on the eye, nose, ear, etc. It is successtul only iTT~Eapiflary or "small arteriaTTIeeding, as it cannot stop a large vessel hemorrhage. For the of hemorrhage it must be applied directly to the bleeding vessels or congested area, if the blood washes it away the application may fail because it has not time to act. It may be swallovyed to check hemorrhage from the stomach, but the chances of success are small because a '■quantity of liquid is usually present in the stomach which dilutes the remedy so that it is useless. It should be given for internaL-coccealed in which raising the blood pressure is not desirable! Epinephrin is employed in conjunction with local anes- thetics, especially cocain, to limit the absorption bt the anesthetic and secure a more efficient locaPaclTon. It has USEFUL DRUGS 71 proved very useful in rdieying paroxysms of asthma by applying a spray to the nose or throat, and especially ’Ey hypodermic “injection; it is alscf useful in anaphylactic shock and in relieving the urticaria of serum sickness. Itffravenous injections of epinephrin are sometimes use- ful to stimulate the heart action and raise the blood-pres- sure, in various forms of collapse. Its efficacy, however, is limited by the brief action, and there is considerable danger of producing cardiac dilatation and sudden death. Dosage : Epinephrin or its hydrochlorid is employed in solutions of a strength of from to 1 r 1,000. For internal or hypodermic administration tEe dose oFa solution is 1 Cc.yf 15 drops; for intramusculax-.iniection. 0.5 Cc. or Tdrops; for intravenousinjection, 0.1 Cc. diluted freely with salt solution, injected very slowly? When an oily vehicle is to be used the base itself is prescribed, but when aqueous solutions are wanted one of the salts should be employed. Ergota (Ergot.), Ergot, U. S. P. (Secale Cornutum, P. I., Ergot of Rye, Spurred Rye).—The dried sclerotium of Claviceps purpurea, replacing the grain of rye. Ergot owes its activity chiefly to ergotoxin (hydroergotinin), paraoxyphenylethylamin (tyramin), histamin (imidazo- lylethylamin) and probably other amins of minor impor- tance. Paraoxyphenylethylamin is closely related to epinephrin both in composition and in pharmacologic action. • i", Action and Uses : The several active principles of ergot have somewhat different actions, but the total effect is as follows: Ergot causes powerful tonic, sometimes tetanic contrac- tions of the uterus. It tends to slow the pulse by stimulat- ing the cardio-inhibitory centers. It also produces con- traction of other involuntary muscles such as those of the blood vessels, stomach and intestines, the bladder, etc. Extreme and long-continued contraction of the blood- vessels, especially of the extremities, may lead to gangrene. The only important use of ergot is to prevent post- partum hemorrhage. For this purpose a full dose is often given as soon as the second stage of labor terminates, but it is much safer to give it after the placenta has been expelled. Its use during labor should be avoided, as it may cause rupture of the uterus or asphyxia of the child. It is considered an effective prophylactic for “after-pains.” Ergot is also used for hemorrhage from the uterus in menorrhagia and metrorrhagia. Its use for hemorrhage from other internal organs is not rational, as it increases blood pressure and tends to prolong rather than check the bleeding. Ergot has also been employed against a number of other conditions, in which its use appears irrational; such as for congestions in various regions, for the treatment of the 72 early stage of acute pneumonia, for pulmonary congestion in typhoid fever, in diabetes insipidus, in colliquative night- sweats due to relaxation of the blood vessels, and as a circulatory stimulant. USEFUL DRUGS Dosage: 2 Gm. or 30 grains. It is sometimes admin- istered in the form of powder, but most commonly in the form of fluidextract. Fluidextractum Ergotae (Fldext. Ergot.), Fluidextract of Ergot, U. S. P. (Secali Cornuti Extractum Fluidum, P. I.).—A hydro-alcoholic extract of ergot similar to, but not identical with, the international standard fluid- extract of ergot. Dosage : 2 Cc. or 30 minims. Eucalyptus (Eucalypt.), Eucalyptus, U. S. P. (Blue Gum Leaves).—The dried leaves of Eucalyptus globulus col- lected from the older parts of the tree. Used in medi- cine in the form of: Eucalyptol, Eucalyptol, U. S. P. (Cineol).—An organic compound, obtained from the volatile oil of Eucalyptus globulus and from other sources. Properties: Eucalyptol occurs as a colorless liquid, having a dis- tinctly camphoraceous odor, and a pungent, spicy and cooling taste. Eucalyptol is soluble in all proportions in alcohol, but is only slightly soluble in water. Dosage: 0.3 Cc. or 5 minims. Oleum Eucalypti (Ol. Eucalypt.), Oil of Eucalyptus, U. S. P. (Eucalyptus Oil).—The oil distilled from the fresh leaves of eucalyptus, and yielding not less than 70 per cent, of eucalyptol (cineol). Properties: Oil of eucalyptus occurs as a colorless or pale yellow liquid, having a somewhat caniphoraceous odor, and a pungent, spicy and cooling taste. It is miscible in all proportions with alcohol, but practically insoluble in water. Action and Uses : Eucalyptol and oil of eucalyptus are antiseptic and expectorant. For internal use they are preferably administered in the form of capsules. For local application in the throat or nose they are used either in the form of oil sprays or are directed to be inhaled in the form of vapor from boiling water. Oil of eucalyptus, 2 Cc.; chloroform, 3 Cc. and castor oil, 40 Cc., mixed and taken in two portions at half-hour intervals, is sometimes used as an anthelmintic for uncinariasis. Dosage : 0.5 Cc. or 8 minims. Fel Bovis, Oxgall, U. S. P.—The fresh bile of the ox, Bos taurus. Used principally in the form of: USEFUL DRUGS 73 Extractum Fellis Bovis (Ext. Fel. Bov.), Extract of Oxgall, U. S. P. (Powdered Extract of Oxgall).—A light yellow powder having a peculiar odor and a bitter taste. Represents eight times its weight of oxgall. Action and Uses: Extract of oxgall is an intestinal antiseptic* cholagogue and laxative. The bile salts are held to be the most powerful stimulants to the secretion of bile. Dosage: 0.1 Gm. or IV2 grains. It is best administered in the form of pills or in gelatin capsules which have been treated with a solution of formaldehyd. Ferri Carbonas, Ferrous Carbonate. Properties: Ferrous carbonate is made by precipitating a solution of a soluble ferrous salt by a soluble carbonate. Such a precipitate tends to give off carbon dioxid, absorb oxygen and change rapidly into a basic carbonate, and finally into ferric hydroxid. Various pharma- ceutical processes have been devised to prevent this change. The principle of these processes is well illustrated in the preparations described below as Vallet’s mass (massa ferri carbonatis) and Blaud’s pills (pilulae ferri carbonatis). Action and Uses : The action of all forms of iron is essen- tially the same so far as the action of the iron component is concerned. When an iron salt is taken into the stomach it may be converted into a chlorid, but this is further changed during the process of digestion. The original form in which the iron was combined seems to make little or no difference in regard to the extent or the form in which it is absorbed. A large part of the iron ingested passes through the intestines without being absorbed. A smaller portion is absorbed, mainly through the lymph, and is deposited for a time in the blood-making organs, chiefly the spleen, where it is retained for an indefinite time as “reserve iron.” Some of this supply is used in forming hemoglobin, which enters into the red blood corpuscles. The rest is eliminated by the mucous mem- brane of the large intestine and only traces by the kidneys. Iron is not excreted by the bile. The presence of iron in the blood in the amount resulting from medicinal adminis- tration produces no recognizable changes in normal indi- viduals. Its salts with the stronger acids may act as gastro-intestinal irritants and astringents. The only sys- temic therapeutic action attributable to iron is the improve- ment in the number of red blood cells and in the amount of hemoglobin in them. For this reason it is indicated in anemia and in diseases of the blood in which anemia is a factor, such as leukemia. It is chiefly of value in anemia following hemorrhage, in chlorosis and in secondary anemias. In pernicious anemia it is useless. Massa Ferri Carbonatis (Mass. Ferr. Carb.), Mass of Ferrous Carbonate, U. S. P. (Vallet’s Mass).—Contains not less than 35 per cent, of ferrous carbonate, FeCOs. with honey and sugar as preservatives, and sodium sul phate resulting from the process of manufacture. 74 USEFUL DRUGS Dosage : 0.25 Gm. or 4 grains. Pilulae Ferri Carbonatis (Pil. Ferr. Carb.), Pills of Ferrous Carbonate, U. S. P. (Chalybeate Pills, Blaud’s Pills, Ferruginous Pills).—These pills contain ferrous carbonate, potassium sulphate and sugar, with a smaller proportion of tragacanth and althea to make a mass. Each pill represents approximately 0.06 Gm. or 1 grain of ferrous carbonate. Dosage: 2 pills. Ferri Chloridum (Ferr. Chlor.), Ferric Chlorid, U. S. P (Iron Perchlorid, Sesquichlorid of Iron).—FeCU. Used in medicine principally in the form of: Tinctura Ferri Chloridi (Tr. Ferr. Chlor.), Tincture of Ferric Chlorid, U. S. P.—A hydro-alcoholic solution of FeCls, containing about 13 per cent, of the anhydrous salt, corresponding to about 4.5 per cent, of metallic iron. Properties: Tincture of ferric chlorid is a bright amber-colored liquid, having a slightly ethereal odor, a very astringent taste and an acid reaction. It is miscible in all proportions with either water or alcohol. Incompatibilities: It is incompatible with tannin, the vegetable astringents (which give an inky color to the mixture), and with alkalies and alkali carbonates. Tinc- ture of ferric chlorid is also incompatible with iodids, from which it liberates iodin. Action and Uses: Tincture of ferric chlorid is an astringent and is used in applications to the throat. It may be employed as a hematinic, but often disturbs diges- tion. It is sometimes given in infections like erysipelas, but it is doubtful if it has any special value in this disease. Dosage: 0.5 Cc. or 8 minims, freely diluted. Injury to the teeth should be avoided by taking it through a glass tube or a straw. Equal parts of the tincture, glycerin and water form a useful local application in acute tonsillitis. Ferri et Ammonii Citras (Ferr. et Ammon. Cit.), Iron and Ammonium Citrate, U. S. P. (Soluble Ferric Citrate, Ammonio-Ferric Citrate).—Should contain the equivalent of about 17 per cent, of Fe. Properties: It forms thin, transparent, garnet-red scales, without odor, having a saline, mildy ferruginous taste; deliquescent in moist air. It is freely and readily soluble in water, but practically insoluble in alcohol. Action and Uses: Iron and ammonium citrate is one of the more widely used of the soluble preparations of iron. It is practically nonastringent. It may be directed to be dissolved in water, aromatic elixir or syrup. It has been given hypodermically. Dosage: 0.25 Gm. or 4 grains. USEFUL DRUGS 75 Ferri Iodidum, Ferrous Iodid.—FeL. A very unstable com- pound, easily undergoing oxidation. In order to preserve it in the ferrous condition it is commonly used in medi- cine in the form of syrup. Syrupus Ferri Iodidi (Syr. Ferr. Iod.), Syrup of Ferrous Iodid, U. S. P. (Ferri Iodidi Syrupus, P. I.).—Contains about 5 per cent, by weight of FeL and is practically identical with the international standard syrup of ferrous iodid. Properties: Syrup of ferrous iodid occurs as a transparent pale green or yellowish green liquid having a sweet, strongly ferruginous taste and an acid reaction. Incompatibilities : The syrup is very susceptible to oxidation, and is incompatible with alkali carbonates, acid salts and vegetable astringents. On exposure to light the cane-sugar of the syrup undergoes gradual inversion. Action and Uses : Syrup of ferrous iodid has the general properties of both iron and iodid. Dosage: 1 Cc. or IS minims, containing approximately 0.008 Gm. or Vs grain of iron and 0.03 Gm. or Vz grain of iodin. Ferri Phosphas (Ferr. Phos.), Ferric Phosphate, U. S. P. (Ferri Phosphas Solubilis, U. S. P. VIII, Soluble Ferric Phosphate).—Contains not less than 12 per cent, of Fe. Properties: Ferric phosphate occurs in thin, bright-green trans- parent scales without odor, and having an acidulous, slightly saline taste. It is freely soluble in water, but practically insoluble in alcohol. Incompatibilities : Strong acids decompose it with for- mation of the astringent ferric compound of the acid used. Like other soluble salts of iron it is incompatible with alkalies, alkali carbonates and vegetable astringents. Action and Uses : Ferric phosphate has been recom- mended for the administration of iron in soluble form. It may be dissolved in water and flavored with simple elixir or sweetened with syrup. Dosage: 0.25 Gm. or 4 grains. Ferri Sulphas (Ferr. Sulph.), Ferrous Sulphate, U. S. P. (Iron Protosulphate, Green Vitriol).—FeS04+7H20. Properties: Ferrous sulphate occurs as pale bluish-green crystals, without odor, having a saline, styptic taste. It is efflorescent in dry air. It is freely soluble in water (1: 1.4), but practically insoluble in alcohol. Action and Uses : Ferrous sulphate is sometimes admin- istered in pills as hematinic, but is used chiefly for pharma- ceutical purposes, in the making of ferrous carbonate. The crude sulphate was formerly used extensively as a disin- fectant and deodorant but is now seldom so employed. 76 USEFUL DRUGS Dosage: 0.2 Gm. or 3 grains. Ferri Sulphas Exsiccatus (Ferr. Sulph. Exsic.), Exsic- cated Ferrous Sulphate, U. S. P. (Dried Ferrous Sul- phate.)—Contains not less than 80 per cent, of FeSO-i. One hundred parts represent approximately 150 parts of the crystalline substance. It is preferred for prescribing in pill form. Properties: Exsiccated ferrous sulphate occurs as grayish-white powder, having the chemical properties of ferrous sulphate and being slowly but completely soluble in water. Ferrum (Ferr.), Iron, U. S. P.—Metallic iron, Fe, is used pharmaceutically in the production of preparations of iron, but in medicine is used chiefly in the form of: Ferrum Reductum (Ferr. Reduct.), Reduced Iron. U. S. P. (Ferrum Reductum, Iron by Hydrogen, Quevenne’s Iron). —Contains not less than 90 per cent, of metallic iron (Fe). Properties: Reduced iron occurs as a very fine, grayish-black powder without odor or taste, and permanent in dry air. It is insolu- ble in water or alcohol. Dosage: 0.06 Gm. or 1 grain. Reduced iron is still widely used as a hematinic; it is given preferably in the form of powder, enclosed in capsules. It should be admin- istered just before meals. Formaldehydum, Formaldehyd.—CFLO. Formaldehyd is a gas commonly obtained by oxidation of methyl alcohol. It is used in medicine in the form of: Liquor Formaldehydi (Liq. Formaldehyd.), Solution of Formaldehyd, U. S. P.—Often referred to in literature under the proprietary name, formalin. An aqueous solu- tion containing not less than 37 per cent, of formaldehyd, CH2O, and varying amounts of methyl alcohol. Properties: Solution of formaldehyd is a clear, colorless liquid, having a pungent odor and caustic taste. It is miscible in all pro- portions with water and alcohol. On standing it sometimes loses its transparency, owing to the separation of paraformaldehyd, a polymeri- zation product of formaldehyd. Paraformaldehyd is also frequently formed on evaporation of the solution. Paraformaldehyd is a solid which is largely changed again into formaldehyd on heating. Incompatibilities : Solution of formaldehyd is incom- patible with oxidizing agents and with alkalies. With ammonia it forms hexamethylenamin. Action and Uses: Formaldehyd is a powerful germicide, especially valuable in the form of gas because of its penetrating power, but it is active only in the presence of an abundance of moisture. The solution is germicidal in the strength of from jHxL.2--per_x£iLt. (percentages refer to amounts of absolute formaldehyd, HCHO), but it may USEFUL DRUGS 77 require from twenty to thirty minutes for it to act. In a strength of 1; S,DU0 it restrains the growth of many organisms, and in many cases a strength of 1:20,000 or T730,000 is sufficient to prevent the multiplication of bac- teria. It hardens tissues and is used in histology for this purpose. IFlias a similar hardening effect on the living4 skin; it is very irritating and if repeatedly or continuously, applied produces reddening, inflammation and necrosis. It is applie .:!c_ Vju U. ‘ -dop &frO*.!14 Suppositoria Glycerini (Suppos. Glycerin.), Suppositories of Glycerin, U. S. P. — Each suppository contains approximately 3 Gm. or 45 grains of glycerin gelatinized by means of stearic acid soap. Action and Uses : A glycerin suppository, or glycerin itself, when introduced into the rectum absorbs water from the surrounding tissues and by this irritation causes prompt evacuation of the rectum. Habitual use should be avoided. Glycerylis Nitras, Glyceryl Trinitrate (Nitroglycerin, Tri- nitrin, Glonoin).—A compound obtained by the action of nitric acid on glycerol in the presence of sulphuric acid. Properties: Nitroglycerin is a moderately volatile, explosive liquid slightly soluble in water, but quite soluble in alcohol. Therapeutically it is employed only in form of: Spiritus Glycerylis Nitratis (Sp. Glyceryl. Nit.), Spirit of Glyceryl Trinitrate, U. S. P. (Spirit of Glonoin, Spirit of Nitroglycerin).—An alcoholic solution con- taining about 1 per cent, by weight of glyceryl trinitrate. Properties: Spirit of Glyceryl Nitrate is a clear, colorless liquid, having the odor and taste of alcohol. Caution should be exercised in tasting it, since even a small quantity of it is likely to produce violent headache. Incompatibilities: Water, in excess of equal amount, causes white turbidity. Aromatic elixir is therefore a better diluent for it. Alkalies and their carbonates decompose it. USEFUL DRUGS Action and Uses : Although a nitrate, glyceryl nitrate has the physiologic action of nitrites but acts more slowly than amvl nitrite. It may be given when it is desired to effect a reduction of the arterial pressure, but it gradually becomes inefficient. It may be prescribed in arteriosclerosis, and in nephritis in which a high blood pressure is a prominent symptom. It is chiefly used with success in some cases of angina pectoris. It is sometimes combined with digitalis' iif order to produce vasodilatation and thus lessen the amount of work that the heart must do. Dosage: Average 0.05 Cc. or 1 minim repeated as often as required, which may be quite frequently, as its action is fleeting. It is best to use half of the average dose at first, to avoid excessive action; and it may be necessary to use several times the average dose later. Unless the patient experiences fulness in the head shortly after taking the dose, the drug has not been given the opportunity to demonstrate what it might accomplish. It is most com- monly prescribed in form of tablets, containing usually 0.0006 Gm., or Jloo grain, each, of glyceryl nitrate. These are more effective whenneld in the mouth until absorption, which is rapid from the buccal mucous membrane, is com- plete. If tolerance is acquired, it is advisable to intermit the administration, so that the response may be restored. Glycyrrhiza (Glycyrrh.) Glycyrrhiza, U. S. P. (Licorice, Liquorice Root).—The dried rhizome and root of Glycyr- rhiza glabra typica (Spanish licorice), or of Glycyrrhiza glabra glandulifera (Russian licorice). Used in medicine chiefly as a vehicle and principally in the form of: Fluidextractum Glycyrrhizae (Fldext. Glycyrrh.), Fluidextract of Glycyrrhiza, U. S. P. (Fluidextract of Licorice) .—An aqueous extract of glycyrrhiza pre- served by means of glycerin and alcohol. It is usually mixed in some such proportion as 1:7 with syrup or water or both, but is incompatible wiTK acid. A simple mixture of 12 Cc. of fluidextract of glycyrrhiza and 88 Cc. of aromatic elixir is official in the U. S. P. as “elixir glycyrrhizae.” Glycyrrhiza in the form of powder is used as a flavoring agent and vehicle in connection with : Pulvis Glycyrrhizae Compositus, which see under Senna. Guaiacol, Guaiacol, U. S. P.—Guaiacol is one of the chief constituents of wood-tar creosote. Properties: Guaiacol is a colorless or yellowish, strongly refractive liquid or a nearly colorless crystalline solid, having an agreeable aromatic odor. It becomes darker on exposure to light and air. Guaiacol is soluble in water (1: S3), and miscible with alcohol in all proportions. Action and Uses: Guaiacol is antiseptic and germicidal, but is milder than creosote. When rubbed on the skin it USEFUL DRUGS 81 is absorbed. When given in this way it is an active antipyretic, but its action is not easily controlled. It is an intestinal antiseptic and also an expectorant. It is not excreted by the lungs, however. Dosage : Guaiacol may be given in emulsion or in the form of capsules. The initial dose should not exceed 0.1 Cc. or about T% minims. This may be gradually increased to 0.6 Cc. or 10 minims, if well borne. It is sometimes applied to the pharynx as a 50 per cent, solution in glycerin. The external use of guaiacol as an antipyretic is not to be recommended on account of the symptoms of collapse which sometimes follow these applications. Guaiacolis Carbonas (Guaiacol. Carb.), Guaiacol Carbonate, U. S. P.—A guaiacol derivative [C8H4(OCH3)]2COs. Properties :_ Guaiacol carbonate is a white crystalline powder of neutral reaction, almost tasteless and odorless. It is practically insoluble in water, but is soluble in alcohol (1: 60). It is decomposed readily with the liberation of guaiacol. Incompatibilities : It is incompatible with alkaline hydroxids. Action and Uses : Guaiacol carbonate is inactive until decomposed with the liberation of guaiacol. This occurs only in the presence of putrefactive organisms so that in the intestine it acts only when an antiseptic is needed and the excess fails to be absorbed and is excreted with the feces. Consequently it is ordinarily not poisonous. It is used internally as a tasteless and nonpoisonous substitute for guaiacol. Dosage: 1 Gm. or 15 grains. It may be given in pow- ders, capsules or cacTTets. Hexamethylenamina (Hexam.), Hexamethylenamin, U. S. P. (Hexamethylene-tetramin).—Hexamethylenamin or hexa- methylenetetramin, (CH2)nN4, is a condensation product of ammonia and formaldehyd. Properties: Hexamethylenamin forms colorless, lustrous, odorless crystals, freely soluble in water (1:1.5) and alcohol (1:12.5). The aqueous solution has an alkaline reaction. Hexamethylenamin is a base which combines with acids to form salts. These salts tend to lose formaldehyd, and most acids decompose the base completely with the liberation of formaldehyd. Even in aqueous solution a slow sep- aration of formaldehyd occurs. The basic properties of hexameth- ylenamin are so pronounced that it displaces ammonia and other weak bases from their combinations. Incompatibilities : Hexamethylenamin is incompatible with acids which Hberate formaldehyd and with salts of ammonium from which it separates ammonia. Acid salts like acid sodium phosphate and combined acids like acetyl- salicylic acid (aspirin) react with it like other acids. It is also incompatible with tannin and mercuric chlorid, which precipitate hexamethylenamin. 82 USEFUL DRUGS Action and Uses : Hexamethylenamin is not antiseptic. It produces no marked physiologic effects, except those of formaldehyd, to which it gives rise in the presence of free acid. It is chiefly excreted in the urine; and, when the urine is acid, hexamethylenamin is decomposed, yielding formaldehya This product exercises an antiseptic action on the urine and on the surface of the mucous membrane of the genito-urinary tract, which may become irritated should excess of the formaldehyd be produced. When the urine is alkaline, the decomposition does not occur and the drug is then ineffective. The chief use of hexamethylen- amin is as a urinary antiseptic. While it tends to free the urine from micro-organisms, and in some cases causes pus to disappear, it cannot be expected to act on micro-organ- isms located below the surface. Its chief value is as a prophylactic against infection in catheterization and in operations on the urinary organs. It is also employed in typhoid fever as a prophylactic to the bacilluria. As it has at times produced albuminuria and hematuria, it should be used with caution in cases in which inflammation of the kidney is present or threatened, or when the urinary acidity is abnormally high. Hexamethylenamin is also excreted in the bile, the cerebrospinal fluid and other serous fluids, and by the mucous membranes of the respiratory tract and of the middle ear. Since these fluids are not acid, hexa- methylenamin cannot exert any antiseptic action there. Though formaldehyd is a solvent of uric acid, the use of hexamethylenamin in the hope of dissolving uric acid calculi, tophi, gravel, etc., has been disappointing. It has been shown that ordinary doses of hexamethylenamin do not confer any solvent action on the urine. Doses of 4 Gm. make the urine distinctly more solvent, but not more so than rendering the urine slightly alkaline, as may easily be done by administering sodium bicarbonate or acetate. Dosage: 0.3 Gm. or 5 grains, or even double this amount, in half a glass of wafer every four hours. If the urine is not acid, sodium acid phosphate in doses of 1 to "2 Gm. should be administered every four hours, midway between the doses of hexamethylenamin. Enough sodium acid phos- phate should be used to render the urine acid, but not enough to cause diarrhea. Homatropinae Hydrobromidum (Homatrop. Hydrobr.), Homa- tropin Hydrobromid, U. S. P. (Homatropin Bromid).— The hydrobromid of an alkaloid, tropin mandelate, pro- duced synthetically. Properties: It usually occurs as a white, odorless, crystalline powder, having a bitter taste. Caution must be observed in tasting it. It is freely soluble in water (1:6) and soluble in alcohol (1:40). Incompatibilities : Homatropin hydrobromid has the ordinary incompatibilities of the salts of alkaloids. USEFUL DRUGS 83 Action and Uses: The actions of homatropin are iden- tical with those of atropin, except that the mydriasis pro- duced by it occurs more promptly and disappears in about eighteen hours. When applied freely to the conjunc- tiva it may be absorbed so that the bitter taste can be perceived, but the throat does not become dry as after atropin. The effect of this drug is increased by mixture with cocain. Dosage: 0.5 mg. or grain. Homatropin is used chiefly as a mydriatic "uT*“place of atropin. It may be employed in aqueous solution of 2 per cent, strength, or a drop of a 1: 500 solution may be introduced into the con- junctival sac every five minutes for five times to produce a maximum dilatation in three quarters of an hour. This will return to normal in from fourteen to eighteen hours. Hydrargyri Chloridum Corrosivum (Hydrarg. Chlor. Corr.), Corrosive Mercuric Chlorid, U. S. P. (Bichlorid of Mer- cury, Corrosive Sublimate, Mercuric Chlorid, Perchlorid of Mercury).—Contains not less than 99.5 per cent, of HgCl* Properties: Mercuric chlorid occurs in the form of heavy colorless crystals or a heavy white powder having an acrid and persistent metallic taste. It is permanent in the air. It is very slowly soluble in water (1: 13.5), and freely soluble in alcohol (1: 3.8). Ammonium chlorid, sodium chlorid, tartaric acid and citric acid enhance its solubility in water. Incompatibilities : Mercuric chlorid is precipitated from its solutions by albumin, but redissolves in an excess of the albumin solution. Albumin in the form of egg-white forms an antidote of limited value. As the mercuric albuminate formed is still toxic, the antidote should be followed by evacuation of the stomach. Mercuric chlorid is incompatible with soluble carbonates and hydroxids, forming insoluble mercuric oxid7 and with : small amounts of iodids, forming mercuric iodid or com- plex mercuric iodids. As large excess of iodid dissolves these, prescriptions containing such combination are per- missible. It is incompatible with many alkaloids and other organic compounds. It is reduced to calomel or metallic mercury by iron, zinc and reducing agents in general. It dulls and tarnishes surgical instruments. Action and Uses : Mercuric chlorid is chiefly used as a germicide and an antiseptic. It is also sometimes used as a specific antisyphilitic agent. In a proportion of 1:20,000 it kills non-spore bearing bacteria and in the proportion of 1:300,000 inhibits the growth of many forms. Spores of Bacillus anthracis are killed by a solution of 1:1,000. Its disinfectant action is limited by its deficient penetration and by the fact that it is greatly reduced by combination with organic matter. Mercuric chlorid is irritant to the 84 USEFUL DRUGS skin, setting up a dermatitis. A sufficient amount may be absorbed from the skin to produce serious poisoning. The effects of the poison when absorbed from the skin or mucous membranes are seen in ulcerative stomatitis and diarrhea, characterized by the passage of frequent foul- smelling and bloody stools resembling those of dysentery, various nervous symptoms, marked weakness, irritation of the kidneys with albumin and casts in the urine, leading to anuria, etc. When taken in poisonous doses by the mouth it produces, in addition, irritation and ulceration of the mouth and throat, vomiting and corrosion of the mucosa of the stomach and intestines. Dilute solutions of mercuric chlorid are used by hypodermic or intramuscular injection in the treatment of syphilis. The injections must be repeated daily and have the disadvantage of causing con- siderable pain. Mercuric chlorid is used as a local applica- tion to the skin in some forms of skin disease, sometimes as an antiseptic, but also for the purpose of producing exfoliation of the epidermis. It is sometimes used in 1 per cent, alcoholic solution as an application to corneal ulcers. In the proportion of 1: 5,000 it may be added to collyria to prevent fungus growlhs. Dosage: From 0.002 to 0.01 Gm., or from to tfj grain, in solution or in pill form. As an antiseptic application it may be used in solutions varying in strength from 1:20,000 to 1:2,000. For disinfection of clothing a solution of 1:1,000 may be employed. To excite dermatitis and exfolia- tion, solutions varying in strength from 1: 1,000 to 1:200 may be used, but caution should always be exercised in employing the stronger solutions for fear of absorption of the poison. The injection of mercuric chlorid solutions into the body cavities or its application to raw surfaces or mucous membranes should be undertaken only with the greatest caution. Hydrargyri Chloridum Mite (Hydrarg. Chlor. Mit.), Mild Mercurous Chlorid, U. S. P. (Mercurous ChTorlcf, Calomel, Protochlorid of Mercury, Subchlorid of Mer- cury 5".—Contains not less than 99.6 per cent, of HgCl. Properties: Mild mercurous chlorid is a white impalpable powder, becoming yellowish-white on trituration with strong pressure, odorless, tasteless and permanent in the air. It is practically insoluble in water, alcohol or ether. It undergoes changes when exposed to the action of light or under the influence of alkaline chlorids, bromids or iodids, by which mercuric salts are more or less rapidly formed. The mercuric salt enters into solution in combination with the salt of the alkali metal present. Alkaline hydroxids convert it into mercurous oxid; ammonia forms with it a mixture of mercury and mercuric ammonium chlorid. Incompatibilities : Calomel is incompatible with alkalies, with oxidizing acids like nitric acid and also with soluble bromids and iodids. The fear that nonoxidizing acids like hydrochloric acid will form mercuric chlorid from it is unfounded. Calomel is not incompatible with such acids. USEFUL DRUGS 85 Action and Uses : Mild mercurous chlorid is not irritat- ing to the mucous membrane of the mouth, esophagus and stomach, but it provokes bowel movements by a slow action, thought to be due to a partial change into a mercuric salt or a protein compound. The absorption of the mercuric salt may produce symptoms of subacute mercurial poison- ing, the chief indications of which are pain in the abdomen, loose passages, salivation, loosening of the teeth, swelling, soreness and ulceration of the gums, foul breath and gen- eral malaise. Calomel was formerly supposed to have a cholagogue action, but it does not increase the quantity of bile secreted, although by its cathartic action it may increase temporarily the amount poured out by the intes- tine. The stools resulting from the action of calomel are frequently greenish, because the bilirubin in the intestinal contents, being hurried through the colon, fails to undergo the change into urobilin which normally occurs. The change in color may also be due in part to the formation of mercuric sulphid. Calomel is useful as an intestinal antiseptic. It is considered valuable as a cathartic at the beginning of mild catarrhs of the stomach and intestines. It is also frequently used in conjunction with the more active salines to empty the bowels in cases of infection, or toxemia. It is frequently administered as a laxajfye when stomach is irritable because it is retained better tKan dfher cathartics. Calomel is sometimes an excellent diuretic in cardiac dropsy, in which condition its absorp- tion must be secured through the control of the purgative action. It is of much less value in other forms of dropsy. It is applied externally to sluggish ulcers, and is used by insufflation on the cornea for ujlceration or opacities, phlyctenular conjunctivitis, etc. Dosage : Only a small portion of the calomel is absorbed, so that minute doses are generally effective. From 0.00S to 0.02 Gm., or from JI2 to V3 grain may be given every half hour or hour until from 0.1 to 0.2 Gm., or from IV2 to 3 grains have beerugiven. The calomel should be followed in a few hours or the next morning by a saline cathartic. When calomel is used externally, care should be taken that no iodids are administered internally at the same time, because the presence *0T* iodids in the secretions, for example, tears, may cause the formation of a mercuric salt and induce great irritation. Hydrargyri Iodidum Flavum (Hydrarg. Iod. Flav.), Yellow Mercurous Iodid, U. S. P. (Mercurous Iodid, Protiodid of Mercury, Yellow Iodid of Mercury, formerly also called “Green Iodid of Mercury”).—Contains not less than 99 per cent, of Hgl. Properties: Mercurous iodid is a bright yellow, amorphous powder, odorless and tasteless. By exposure to light it becomes darker, in proportion as it undergoes decomposition into mercuric iodid and metallic mercury. It is almost insoluble in water and wholly insoluble in alcohol. 86 USEFUL DRUGS Incompatibilities : Mercurous iodid is incompatible with oxidizing agents, alkalies and the haloid salts of the alkali metals (chlorids, bromids or iodidsj, which tend to decom- pose it with the formation of mercuric salts. Alkali iodids decompose mercurous iodid with formation of metallic mercury and soluble alkali mercuric iodid. Action and Uses : Mercurotjs iodid is used to secure the constitutional effects of mercury by oral administration, especially in the treatment of syphilis. Injection and inunction methods are so much more effective, however, that the oral treatment of syphilis tends to become obsolete. Taken internally, the effects of mercurous iodid are much the same as those of calomel, although it is not so likely to produce diarrhea or salivation as the latter. Dosage: For oral administration in syphilis, mercurous iodid is best given in pill form in doses gradually increas- ing until slight toxic symptoms appear, such as diarrhea, tenderness of the gums, pains in the abdomen, etc. During its administration careful attention should be given to cleanliness of the mouth and skin. The teeth should be kept in good order, and soreness of the gums should be the signal for interrupting temporarily the administration of the remedy, or greatly reducing the dose. The initial dose should not exceed 0.015 Gm. or Vi grain in the form of a tablet, pill or powder, three times a day after meals, and this should be increased l>y the addition of 0.008 Gm. or Vs grain daily to the limit of tolerance. Hydrargyri Iodidum Rubrum (Hydrarg. Iod. Rub.), Red Mercuric Iodid, U. S. P. (Biniodid of Mercury, Mercuric Iodid, Red Iodid of Mercury).—Contains not less than 99 per cent, of Hgl2. Properties: Mercuric iodid is a scarlet-red powder, odorless and tasteless, and permanent in the air. It is nearly insoluble in water, but slightly soluble in alcohol (1: 115). It is rendered soluble in the presence of soluble iodids, such as an equal weight of potassium iodid with formation of potassium mercuric iodid. Incompatibilities : Red mercuric iodid is incompatible with alkalies and their carbonates and with alkaloids and their salts. Action and Uses : Mercuric iodid is used as an anti- septic and germicide. It is more powerfully antiseptic than mercuric chlorid. It may be applied in potassium iodid solution. It is also used for the internal administration of mercury. A solution of mercuric iodid in sodium iodid (mercuric iodid 1 Gm., sodium iodid 3 Gm., water to make 100 Cc.) is used as a means of administering mercury by intramuscular injection. Dosage : 0.003 Gm. grain three times a day. It is frequently formed for internal administration by the pre- scription of a mixture of corrosive mercuric chlorid and potassium iodid. USEFUL DRUGS 87 Pfc Hydrargyri chloridi corrosivi 0.060 Gm. Potassii iodidi 6.0 Gm. Aquae 100.0 Cc. M. Sig.: Teaspoonful in tumblerful of milk three times daily after meals. Hydrargyri Oxidum Flavum (Hydrarg. Oxid. Flav.), Yellow Mercuric Oxid, U. S. P.—Contains not less than 99.5 per cent, of HgO. Properties: Yellow mercuric oxid is a light orange-yellow, amor- phous powder, odorless and having a somewhat metallic taste. It is permanent in the air, but turns darker on exposure to light. It is nearly insoluble in water and in alcohol. Incompatibilities: Yellow mercuric oxid is incompatible with acids, which dissolve it, forming mercuric salts. Action and Uses: Yellow mercuric oxid is employed externally as an antiseptic and stimulant chiefly in blepharitis, phlyctenular conjunctivitis, etc. Its value in treatment of styes lies probably in its preventing the dis- semination of"t1fe infection to other glands. Dosage: Yellow mercuric oxid is generally used in form of ointment varying in strength from 0.1 to 2 per cent. i Unguentum Hydrargyri Oxidi Flavi (Ung. Hydrarg. Oxid. Flav.), Ointment of Yellow Mercuric Oxid, U. S. P.—A 10 per cent, mixture of yellow mercuric oxid, with water, hydrous wool-fat and petrolatum. Dosage: For use in the eye it should be diluted with from 5 to 100 parts of petrolatum so as to reduce the per- centage of mercuric oxid to from 2 to 0.1 per cent. Hydrargyri Salicylas (Hydrarg. Salicyl.), Mercuric Salicylate, U. S. P. (Mercuric Subsalicylate).—A mercuric salt of salicylic acid in which one atom of mercury is combined with one molecule of salicylic acid. It contains from 54 to 59.5 per cent, of Hg. Properties: Mercuric salicylate is a white or slightly yellowish or pinkish amorphous powder, tasteless, odorless and neutral to litmus paper. It is nearly insoluble, in water or alcohol, but soluble at the ordinary temperature in solutions of sodium hydroxid or sodium car- bonate with the formation of a double salt. Incompatibilities : Mercuric salicylate is incompatible with iodids and (probably) other halogen salts. Action and Uses: Mercuric salicylate is used as an anti- septic and for producing the internal actions of mercury especially by intramuscular injection in the treatment of syphilis. Dosage: Mercuric salicylate is given by intramuscular injection in a 10 per cent, suspension in vegetable fats; 0.6 Cc. or 10 minims of this suspension is injected once in four days. It is held by many clinicians that the USEFUL DRUGS introduction by the mouth of sufficient mercury to eradicate syphilis thoroughly is practically impossible. The benzoate and the succinimid of mercury are also administered by intramuscular injection; they differ from the salicylate in that they are used as aqueous solutions. They are more absorbable and the injections are, therefore, made more frequently, and with smaller doses. Hydrargyrum (Hydrarg.), Mercury, U. S. P. (Quicksilver).— Contains not less than 99.5 per cent, of Hg. Properties: Metallic mercury in its ordinary form is a shining, silver-white, volatile and fluid metal without odor or taste. In its massive form it has comparatively little physiologic action and is not poisonous even in large quantities. When it has been reduced to a fine state of subdivision it is capable of absorption either by the skin or mucous membranes, and then produces the ordinary pharmacologic effects of its salts. It is also very active in the form of vapor. Mercury is widely used in the form of the following mixtures: t Hydrargyrum cum Creta (Hydrarg. cum Cret.), Mer- W1TH,_Chalk, U. S. P. (Gray Powder).—A powder containing about 38 per cent, of mercury with clarified honey and prepared chalk. Properties: By long shaking and trituration of the mercury with the other ingredients it is reduced to so fine a state of subdivision that distinct globules cannot be seen with a lens magnifying 4 diam- eters. The preparation then forms a light gray, slightly adhesive powder, with little odor, and a slightly sweetish taste. Action and Uses : This preparation is used in general in the same wav as calomel- but is believecPto-affect the intestines~Tess7 partly Because of the antagonizing influence onhe~cTVan Uses: raramn is used as arprotective cover- ing for hums.. For this purpose a plastic” variety (“Par- affin for Films,” N. N. R.) is melted and painted or sprayed on the dried surface and covered with dry dress- ing. Paraffin has been employed also in surgery for pros- thetic purposes; its use for this purpose, however, is not without the danger of causing proliferation of surrounding tissue cells, leading to the of a. so-called “paraffinoma. Paraldehydum (Paraldehyd.), Paraldehyd, U. S. P.— (CH.i.CHO)3. A polymer of acetaldehyd, CH3.CHO. Properties: Paraldehyd is a colorless, transparent liquid, having a strong characteristic odor, and producing first a burning and then a cooling taste. It is soluble in water (1:8) and miscible in all proportions with alcohol. Action and Uses : Paraldehyd is hypnotic and anti- spasmodic. It has no direct action on the circulation, '5'Xcept that it dilates the blood vessels. It acts rapidly and produces a sleep which closely resembles natural sleep. Its promptT^fficTent action and low toxicity would make it a valuable hypnotic;, were it not lor its disagreeable odor. This persists in the breath of the patient and interfered with its use in many cases. It may cause a habit very similar to that induced hy alcohol. Dosage: 2 Cc. or 30 minims. Preferably administered with cracked ice or ice-water. Larger doses are employed in delirium tremens (a teaspoonful every hour, for several dosesif necessary)"'. Pelletierinae Tannas (Pellet. Tann.), Pelletierin Tannate, U. S. P.—A mixture in varying proportions of the tan- nates of four alkaloids obtained from pomegranate bark. Properties: Pelletierin tannate occurs as a light yellow, odorless, amorphous powder, having an astringent taste and a weak acid reac- tion. It is only slightly soluble in water (1:240), but soluble in alcohol (1:16). USEFUL DRUGS 111 Action and Uses: Pelletierin tannate is an effective anthelmintic and teniafuge. Dosage: 0.25 Gm. or_4 Preferably administered in the form of capsuled! The alimentary canal should be emptied as completely as practicable by a mil9 purgative (castor oil or a saline). A light diet on the previous day and fasting on the morning on which the anthelmintic is given, should be prescribed. This remedy should be fol- lowed in two hours by a purgative (castor oil). Not more than 0.3 Gm. or 5 grains of pelletierin tannate should be given, as even this amount has produced paralysis. It may be given to children in syrup of citric acid, 0.1 Gm. (1)4 grains) in 30 Cc. (1 fluidounce). Pepsinum (Pepsin.), Pepsin, U. S. P.—A mixture containing a proteolytic ferment or enzyme obtained from the glan- dular layer of the fresh stomach, of the hog, Sus scrofa. Properties: Pepsin occurs as pale yellow, transparent or trans- lucent scales or grains, or as a cream-colored, amorphous powder, free from offensive odor and having a slightly acid or saline taste. It is soluble, or almost entirely soluble in water (I: SO), the solution having more or less opalescence; it is practically insoluble in alcohol. Action and Uses : Pepsin acts only in an acid medium. It is useful to secure the digestion of protein food in the stomach. It is seldom indicated, because the gastric juice usually contains sufficient pepsin to perform gastric diges- tion. It may be given in conjunction with hydrochloric acid in those cases of acute dyspepsia in which there is an absence of free hydrochloric acid in the stomach contents. In chronic cases it should be given only when the acid and pepsin are both lacking. As a rule, even when acid is absent, the pepsin is still secreted, and digestion will occur normally if hydrochloric acid is given without pepsin. Dosage: 0.5 Gm. or 8 grains. Petrolatum (Petrolat.), Petrolatum, U. S. P. (Petrolatum Ointment, Petroleum Jelly).—A purified mixture of hydrocarbons, obtained by distilling off the lighter and more volatile portions from petroleum, and purifying the residue. Properties: Petrolatum occurs as an unctuous mass, of about the consistence of an ointment, varying in color from white to dark amber. The white variety is official as Petrolatum Album, or White Petrolatum, U. S. P. Action and Uses : Petrolatum is used chiefly as a base for ointments. Sterilized petrolatum is employed as a lubricant. Petrolatum Liquidum (Petrolat. Liq.), Liquid Petrolatum, U. S. P. (Liquid Paraffin, Mineral Oil).—A mixture of liquid hydrocarbons, obtained by distilling off most of 112 USEFUL DRUGS the lighter and more volatile portions from petroleum, and purifying the liquid residue. The specific gravity ranges from 0.828 to 0.905. In the Pharmacopeia two varieties are separately described as: Heavy Liquid Petrolatum.—Viscosity not less than 3.1. Light Liquid Petrolatum.—Viscosity not more than 3. Adapted for use in atomizers. Properties: It occurs as a colorless or very slightly yellowish, oily, transparent liquid, without odor or taste, but giving off, when heated, a faint odor of petroleum. It is practically insoluble in water and only slightly more soluble in alcohol. Action and Uses : Liquid petrolatum is used as a vehicle for medicinal agent for local application. When employed as a spray, the light liquid petrolatum should be used. It is also given internally, largely for its mechanical action, to keep the stools soft in the treatment of constipa- tion. It is not absorbed by the intestine and has no nutri- tive properties. Liquid petrolatum should not be used as a vehicle for substances to be injected intramuscularly or subcutaneously, as it may lead to tumor formation. Dosage: 15 Cc. or 4 fluidrams. It is best given at bed- time, or on an empty stomach in the morning; and, if necessary, before other meals as well. Phenol, Phenol, U. S. P. (Acidum Carbolicum, Carbolic Acid).—Hydroxybenzene, GHsOH, obtained from coal- tar by fractional distillation and subsequent purification or made synthetically. Properties: Phenol should contain not less than 97 per cent, of CeHsOH. It occurs as colorless, interlaced or separate, needle-shaped crystals, having a characteristic, somewhat aromatic odor. When copiously diluted with water, it has a sweetish taste, with a slightly burning aftertaste, and, when undiluted, cauterizes and whitens the skin and mucous membranes. Phenol is soluble in water (1: IS) and miscible with alcohol in all proportions. Action and Uses : Phenol is antiseptic and germicidal. A solution of 1:850 will prevent the multiplication of bacteria. A 1 per cent, solution will usually destroy non- sporulating bacteria in a few minutes at ordinary tem- perature, but a 5 per cent, solution fails to destroy anthrax spores after twenty-four hours’ exposure. Phenol is taken as the type or standard for comparing the activity of dis- infectants. The “Phenol Coefficient” means the relative strength of a disinfectant, as compared with a solution of phenol acting on the same organism and for the same length of time. It should be remembered that different micro-organisms show wide differences in their behavior toward antiseptics. Phenol is escharotic when applied to the skin, turning the skin and tissues white. If a finger or other extremity is surrounded with dressings wet even with a dilute solution of phenol, gangrene is likely to occur. USEFUL DRUGS 113 Phenol acts as a local anesthetic. In consequence of this property it is employed to relieve itching. It may be used in the strength of 1 per cent, in solution or in ointment. Phenol has been used as an antiseptic in mouth washes, gargles and sprays. It was formerly employed as an anti- septic in fermentation in the stomach, but it is of no value for this purpose. It is'sometimes given to check vomiting. The injection of phenol into the rectum for the destruction of parasites is dangerous and has sometimes resulted fatally. Superficial “burns” from the action of phenol should be treated by the application of alcohol, glycerin, ether or oils to remove the poison. In phenol poisoning the stomach may be washed out by diluted alcohol, which should be completely removed by washing with water. If left in the stomach, the alcohol may favor the absorption of phenol. Phenol Liquefactum (Phenol. Liq.), Liquefied Phenol, U. S. P. (Liquefied Carbolic Acid).—A liquid containing not less than 87 per cent., by weight, of CePLOH. Properties: Liquefied phenol is a colorless liquid which may develop a slight reddish tint on keeping. It has a characteristic, somewhat aromatic odor and the general chemical and physical char- acteristics of phenol. Dosage : 0.05 Cc. or 1 minim. Phenolphthaleinum (Phenolphthal.), Phenolphthalein, U. S. P. —A dibasic phenol derivative, dihydroxyphthalophenone (CaPLOH)jCO.GjPLiCO, produced by the interaction of phenol and phthalic anhydrid. Properties: Phenolphthalein occurs as white, or faintly yellowish crystals or as an amorphous powder; nearly insoluble in water and freely soluble in alcohol (1:13). Its solutions in acid liquids are colorless, but turn red when the liquid is made alkaline. Action and Uses : Phenolphthalein acts as a purgative, but appears to possess no further physiologic action, except that it may cause some irritation of the rectum and lower bowel. Uosage : The dosage varies according to its effect, from 0.06 Gm. to 0.5 Gm., or from 1 to 8 grains. A case of mild poisoning has been reported from taking 1 Gm. (15 grains). Phenylis Salicylas (Phenyl. Salicyl.), Phenyl Salicylate, U. S. P. (Salol).—The phenylester, QH4(OH)COOCeHo 1:2, of salicylic acid. Properties: Phenyl salicylate occurs as a white crystalline powder, having a faint aromatic odor and a slight but characteristic taste. It is very slightly soluble in water (1:6,670) and freely soluble in alcohol (1:6). Action and Uses : Phenyl salicylate is slightly anti- septic. Its antiseptic action is greatly increased when it is decomposed into its constituents, phenol and salicylic acid. This is effected in the intestines by the fat-splitting 114 USEFUL DRUGS ferment of the pancreas. After absorption, it produces the effect of salicylates, but if larger doses are given the phenyl, of which it contains 40 per cent., may produce toxic effects. The urine may become dark-colored by phenol derivatives excreted by the kidneys, hence, salol should not be used for its constitutional effect as a salicylate. Phenyl salicylate is prescribed as intestinal antiseptic in diarrhea, enteritis, and “intestinal putrefaction.” It is doubtful, however, whether this or other alleged intestinal antiseptics exert any appreciable control over the bacterial flora of the digestive tract. Salol is used in pharmacy for the purpose of coating enteric pills. It must be remembered that the coating of pills of moderate size entails the administration of a considerable dose of salol. Dosage: From 0.2 to 0.5 Gm., or from 3 to 8 grains. It is preferably administered in the form of powder and may be inclosed dry in capsules or cachets. Pills and com- pressed tablets are objectionable, because of the tendency of the substance to fuse into a hard, insoluble mass. Phosphorus (Phosphor.), Phosphorus, U. S. P.—Must be carefully preserved .under water. Properties: Phosphorus is a translucent, nearly colorless solid, of a waxy luster, having, at ordinary temperatures, about the con- sistency of beeswax. It has a distinctive and disagreeable odor and taste and should not be exposed to air. It is practically insoluble in water but slightly soluble in dehydrated alcohol (1: 350). It takes fire readily when exposed to the air. Great care should be used in handling elementary phosphorus. It should be carefully kept under water in a moderately cool place. It should be cut, or other- wise divided, under water. It may be secured in the form of small particles by cautiously melting under water and shaking until cool. Action and Uses : Small doses of phosphorus stimulate the formation of bone and have been used with apparent success in the treatment of rickets, and with less success for poorly uniting fractures. Slight overdosage may cause toxic symptoms. The presence of phosphorus compounds in nerve tissues led to the trial of phosphorus itself, and of all its various compounds, as “nerve foods,” tonics and stimulants, especially in neurasthenia and allied conditions. Its use for this purpose has gradually been abandoned, as it is realized that “nervous exhaustion” is not due to deficiency of phosphorus compounds. Toxic _ doses of phosphorus produce nausea, vomiting and diarrhea. These subside, but after an interval of several days, they recur and are complicated by womiting of blood, painful and enlarged liver, jaundice, drowsiness, and scanty pathg- logic urine. The nervous phenomena increase in severity to somnolence, delirium, coma, and sometimes convulsions. These symptoms are the result oTacute hepatitis and exten- sive fatty degeneration of the viscera, particularly the liver. The bone marrow maytbe stimulated, but this effect cannot be utilized in therapeutics, since it requires toxic doses. In workers in phosphorus, chronic poisoning is shown by a necrosis of the lower jaw. It is perhaps due to infection USEFUL DRUGS 115 through carious teeth, which is favored by previous changes in the bone due to phosphorus. Dosage : 0.5 mg. or )d.20 grain per day, for children. It may be administerecUTfEHer in the form of pills or as phosphorated oil (1:100). Physostigminae Salicylas (Physostig. Salicyl.), Physostigmin Salicylate, U. S. P. (Eserin Salicylate).—The salicyl- ate C15H21O2N3.C7H0O3, of an"’alkaloid obtained from physostigma. Properties: Physostigmin salicylate occurs as colorless or faintly yellowish, odorless crystals. It acquires a red tint on exposure to light and air. It is soluble in water (1: 75) and in alcohol (1: 16). Action and Uses : Physostygmin stimulates the periph- eral endings of the parasympathetic nerves and probably “acts on the musculature to enhance its response to normal stimulation. Thus it increases intestinal peristalsis, and produces contraction of“tlie pupil by local action. When instilled into one eye it causes contraction of the pupil on that side and not on the other. It stimulates the vagus, caus- ing slowing of the pulse, dizziness, a'nd faintness. It depresses the spinal cord. Physostigmin has been employed for its depressing action on the spinal cord in tetanus, strychnin poisoning, and other forms of convulsions, but it is not always reliable. Physostigmin is used occasionally to stimulate peristalsis in the paralytic form of constipation. It is employed chiefly in treatment of eye diseases for the purpose of contracting “the pupil and aTscTfo’ reduce intra- ocular tension. For the latter purpose it is serviceable"in glaucoma. It is a useful remedy in peripheral ulcer of the dflfflgT ' It may be employed to hasten recovery from the effect of mydriatics, such as homatropin. Physostigmin is used in the eve in solution (freshly prepared) of the strength oF from 0.1 to 1 per cent., often in conjunction with cocain. For ha'sfening recovery from a mydriatic, a drop of 0.1 per cent, solution may be employed. Dosage: 0.001 Gm. or %o grain. The following mixture may be used in glaucomaT ~ Cocainae hydrochloridi 0.02 Gm. Physostigminae salicylatis 0.01 Gm. Aquae destillatae '. 10.0 Cc. Pilocarpinae Hydrochloridum (Pilocarpin. Hydrochl.), Pilo- carpin. Hydrochlorid, U. S. P. (Pilocarpin Chlorid).— The hydrochlorid, CuHieOsNz.HCl, of an alkaloid obtained from pilocarpus. Properties: Pilocarpin hydrochlorid occurs as colorless or white translucent crystals, odorless and having a faintly bitter taste. It is hygroscopic, very soluble in water (1:0.3), and freely soluble in alcohol (1:3). Actions and Uses: See Pilocarpinae Nitras. Dosage: From 0.001 to 0.01 Gm. or from %o to % grain. USEFUL DRUGS Pilocarpinae Nitras (Pilocarpin. Nit.), Pilocarpin Nitrate, U. S. P.—The nitrate, CnHioChNs.HNCh, of an alkaloid obtained from pilocarpus. Properties: This salt is less soluble in both water (1:4) and alcohol (1:75) than is the hydrocirturid.tmt has the advantage over that satr'of'Tieing permanent in air. Action and Uses: Pilocarpin stimulates the endings of the parasympathetic nerves. It increases secretion of the salivary, mucous and sweatglaE3& It stimulates the unstriatcd muscles ot including the motor system oT~Ehe intestines and bronchi. The vagus stimulation produced by it which would cause slowing of the pulse and a fall of blood pressure is unimportant in man, as it is soon followed by vagus depression with an accelerated pulse rate. It contracts the pupil and causes spasm of the muscles of accommodation by a peripheral action. Pilo- carpus is administered internally chiefly for its diaphoretic effect, especially in nephritis. It may also be of"serviceTn certain diseases of the skin.- In doses just short of produc-' ing free sometimes of great benefit to relieve itching in generalized acute eczema, urticaria, pru- ritus, etc. In diseases of the eye, such as glaucoma, corneal ulcer, etc., pilocarpin is employed as a weak miotic. Dosage: 0.01 Gm. or % grain. Smaller doses of 1 mg. or Yoo grain are sometimes preferable. Pix Liquida (Pix. Liq.), Tar, U. S. P. (Pine Tar).—A product obtained by the destructive distillation of the wood of Pinus palustris. Properties: Tar occurs as a semiliquid, viscid, blackish-brown product having an empyreumatic odor and a sharp and empyreumatic taste. Tar is miscible with alcohol and fixed or volatile oils, but is only partially soluble in water. * Action and Uses: Tar is an irritant to the skin, having antiseptic and antipruritic properties; often employed as the first remedy in changing the treatment from sedative to stimulating applications in dermatitis. "' When taken internally it stimulates the bronchial mucous membrane. The syrup is a rather feeble remedy for subacute bronchitis. Dosage : In beginning treatment with tar, the strength should be from 2 to 4 per cent. This is especially true when it is employed as antipruritic in acute inflammatory conditions. In chromic cases it is used in the strength of from 6 to 20 per "cent., and sometimes the pure tar is applied Tor use as an antiseptic in skin affections, the fol- lowing formula may be employed: Picis liquidae 2.0 Gm. Potassii hydroxidi 1.0 Gm. Aquae 8.0 Cc. This must be diluted for use. The dose of the syrup is. 4 Cc, j>r 1 fluidram. USEFUL DRUGS 117 Unguentum Picis Liquidae (Ung. Pic. Liq.), Tar Oint- ment, U. S. P.—A mixture of tar (50 Gm.) with yellow wax and lard to make 100 Gm. This should usually be diluted from 10 to 20 times before application. In chronic conditions, scaly eruptions, psoriasis and ringworm it may be applied in full strength. Plumbi Acetas (Plumb. Acet.), Lead Acetate, U. S. P. (Sugar of Lead.).—Corresponds to not less than 99.5 per cent, of Pb (C2ILO2) J+3ILO. Properties: Lead acetate occurs as colorless or heavy white crys- talline masses or granular crystals, having a faintly acetous odor and a sweetish, astringent, afterward metallic taste. It is freely soluble in water (1: 1.4) and soluble in alcohol (1:38). Incompatibilities : Solutions of lead salts are incom- patible with carbonates, hydroxids, iodids, chlorids and sulphates. Action and Uses : Lead acetate is an astringent. A saturated alcoholic solution is used as a "lotion in ivy- poisoning. Dosage : 0.06 Gm. or 1 grain. Liquor Plumbi Subacetatis (Liq. Plumb. Subacet.), Solution of Lead Subacetate, U. S. P. (Goulard’s Extract).—An aqueous solution containing lead subace- tate corresponding to not less than 18 per cent, of lead- (Pb.). It is made by boiling a mixture of lead acetate- lead oxid and distilled water for half an hour. Properties: Solution of lead subacetate occurs as a clear, colorless liquid, odorless, having a sweetish, astringent taste and an alkaline reaction. Dosage: This preparation should be diluted from fifteens to thirty times before application. It as an astringent and antipruritic in inflammatory conditions of the skin and as an application to sprains and bruises. It should not be applied to denuded surfaces and should be used with caution on the face. Podophyllum (Podoph.), Podophyllum, U. S. P. (Mandrake, Mav Apple Rhizome).—The dried rhizome of Podophyl- lum peltatum. Used in medicine chiefly in the form of: Resina Podophylli (Res. Podoph.), Resin of Podophyl- lum, U. S. P. (P^dophyllin). Properties: Resin of podophyllum occurs as an amorphous powder, varying in color from light brown to pale greenish-yellow, turning darker when subjected to heat exceeding 25 C., or when exposed to light. Action and Uses : Resin of podophyllum is very irri- fating to mucous membranes, especially to that of the eyes"."' It has a slight, peculiar odor and a faintly bitter 118 USEFUL DRUGS taste. It is very soluble in alcohol, but practically insolu- ble in water. It is used as a cathartic, chiefly in the form of pills. It was formerly thought to exercise a special Influence on the liver, but this idea has been abandoned. It is chiefly used in small doses for the treatment of chronic constipation. ~ Dosage: From 0.003 to 0.03 Gm. or from Yjo to % As its effects are somewhat uncertain, it iin large doses several hours before the time of the expected 'chill. In large doses it produces depression of the heart and respiration!" and collapse. Such doses may produce more or less complete hemianopia terminating in per- manent loss of sight. Moderately large doses of quinin act as a stimulant to the uterine muscles, but do not produce" such spasmodic contractions as ergot. Quinin is said to tdiave ecbolic action. Quinin may be used as a tonic, like the simple bitters, for the improvement of digestion nutrition. Its .solutions produce local anesthesia, especially the solution of quinin and urea hydrochlorid." The ordi- nary quinin salts are irritant. Dosage: 0.1 to 0.25 Gm. or IV2 'to 4 grains. In malaria 1 Gm. or 15 grains may be given at a dose. Urgent cases may require Intramuscular or intravenous injection; see Quininae et Ureae Hydrochoridum. For ordinary use it is preferably administered in the form of capsules. For use as a bitter tonic it is given in solution. For its use as a local anesthetic see Quininae et Ureae Hydrochoridum. In medicine quinin is customarily used in tne form of one of its salts. The intensely bitter taste of quinin and its solu- ble salts constitutes the greatest objection to its use, espe- cially with children. It may be masked by administering the alkaloid or the insoluble tannate in mixture containing glycyrrhiza or syrup of yerba santa (Svruous Eriodictvi Aromaticus, N. R> Quininae Bisulphas (Quin. Bisulph.), Quinin Bisulphate, U. S. P.—The acid sulphate, C20H2*O2N2.H2SO4+7H2O, of the alkaloid quinin. Properties: Quinin bisulphate occurs in colorless, transparent crystals or as small whitish needles, odorless and having a very bitter taste. It is freely soluble in water (1:8.5), and soluble in alcohol (1: 18). Dosage: Tonic, 0.1 Gm. or IV2 grains; antimalarial, 1 Gm. or IS grains. USEFUL DRUGS Quininae et Ureae Hydrochloridum (Quin, et Urea.., Hydrochl.), Quinin and Urea Hydrochlorid, U. S. (Quinin and Urea Chlorid).—The compound of quinin' hydrochlorid and urea hydrochlorid, C20H24ChN2.HCl.CO (NH2)2.HC1+5H20, containing not less than 58 per cent..' of anhydrous quinin. Properties: Quinin and Urea Hydrochlorid occurs as colorless* prisms or as a white, granular powder, odorless and having a very bitter taste. It is freely soluble in water (1:0.9) and in alcohol : (1:2.4). vs Action and Uses: Quinin and urea hydrochlorid has the actions of quinin. When injected hypodermically it exerts an anesthetic action much more prolonged than that of cocain. It is reported that the anesthesia is in some cases prolonged for several days. Injections of strong solutions produce sufficient irritation to cause fibrosis. Quinin and urea hydrochlorid is useful in the treatment of malaria by intramuscular or intravenous injection. Dosage: Tonic and antimalarial, the same as that of quinin. For the production of local of a solution of from 0.25 to 1 peF'cent. strength is said to be free from the risTc" of producing fibrous indurations, which occurs with stronger solution. For application to mucous membranes solutions varying in strength from' 10 to 20 per cent, should be used. For intramuscular injection, 1 Gm. in 10 Cc. may be employed; but care, should be exercised _nQt to inject fhic peax—w»pcmtant• .nerves. For intravenous injectionf the solution shouldoe mucIT"more dilute, not over V2 of 1 per cent. This must be injected slowly or the quinin may paralyze the heart. Quininae Hydrochloridum (Quin. Hydrochl.), Quinin Hydro- chlorid, U. S. P. (Quinin hydrochlorid, C20H24O2N2.HCI+2H2O, of the alkaloid quinin. Properties: Quinin hydrochlorid occurs as white, silky, glistening needles, odorless and having a very bitter taste. It is soluble in water (1:18) and very soluble in alcohol (1:0.8). Dosage: Tonic, 0.1 Gm. or IV2 grains: antimalarial, 1 Gm. or 15 grains. Quininae Sulphas (Quin. Sulph.), Quinin Sulphate, U. S. P.— The sulphate, of the alkaloid quinin. Properties: Quinin sulphate occurs as white, glistening crystals of prismatic needles, odorless and having a very bitter taste. It is only slightly soluble in water (1: 725) and in alcohol (1: 107). Dosage: Tonic, 0.1 Gm. or IV2 grains; antimalarial, 1 Gm. or 15 grains. Quininae Tannas (Quin. Tann.), Quinin Tannate, U. S. P.— A compound of the alkaloid quinin with tannic acid, containing from 30 to 35 per cent, of quinin. 128 USEFUL DRUGS Properties: Quinin tannate occurs as an amorphous, pale, lemon- yellow, odorless powder without taste, or at most slightly bitter, with scarcely an astringency. It is only slightly soluble in water, but freely soluble in alcohol (1:3). Dosage: 0.5 Gm. or 8_grains Resorcinol (Resorcin.), Resorcinol, U. S. P. (Resorcin).— The diatomic phenol, metadihydroxybenzene, CoH4(OH)j 1:3. Properties: Resorcinol occurs as colorless or nearly colorless needle-shaped crystals, having a faint, peculiar odor and a sweetish, followed by a bitter taste. It is very soluble in water (1:0.9) and in alcohol (1:0.9). Action and Uses: Resorcinol is antiseptic, antizymotic and antipyretic. On account of the readiness with which it causes the formation of methemoglobin and the resulting danger of collapse it is seldom administered internally. It is sometimes given to check fermentation in tTfe"stomach. Applied externally it is astringent in from 1 to 3 per cent, solutions, and produces exfoliation of the epidermis in strong proportions, from 10 to .20 per cent. Dosage: 0.125 Gm. or 2 grains. Rheum, Rhubarb, U. S. P.—The rhizome and roots of Rheum officinale and of other species of Rheum. Action and Uses: Rhubarb is occasionally administered either in the form of powder or in the form of “cubes” or “fingers”; but more commonly employed in form of one of its preparations. Rhubarb and the extract are cathar- tics. bitter tonics, and stomachics, while the aromatic tmc- ture and the aromatic syrup are laxative, and to a slight extent astringent. As cathartics they act chiefly on the colon, and have a tendency to produce constipation after the initial laxative effect. Hence they are an appropriate" remedy in the beginning of diarrhea as they cause the expulsion of irritating substances and promote a return to normal by their constipating influence. Extractum Rhei (Ext. Rhei), Extract of Rhubarb, U. S. P. (Powdered Extract of Rhubarb).—A hydro- alcoholic extract of rhubarb evaporated to dryness and powdered. Represents twice its weight of rhubarb. Dosage: 0.25 Gm. or 4 grains. Tinctura Rhei Aromatica (Tr. Rhei Arom.), Aromatic Tincture of Rhubarb, U. S. P.—Represents rhubarb (20 Gm.), cinnamon (4 Gm.), cloves (4 Gm.) and myristica (2 Gm.), in a mixture of glycerin, alcohol (46 per cent.) and water to make 100 Cc. Dosage: 2 Cc. or 30 minims. USEFUL DRUGS 129 Syrupus Rhei Aromaticus (Syr. Rhei Arom.), Aromatic Syrup of Rhubarb, U. S. P. (Spiced Syrup of Rhubarb). —For all practical purposes this represents aromatic tincture of rhubarb (15 Cc.) with sufficient syrup to make 100 Cc. Dosage : 10 Cc. or 2V2 fluidrams. This is a pleasant preparation, especially "suitable for children., Rosa, Rose.—Used in pharmacy chiefly in the form of: Aqua Rosae (Aq. Ros.), Rose-Water, U. S. P.—A solution of the volatile oil of rose in water. It is official as Aqua Rosae and as Aqua Rosae Fortior. The latter, a satu- rated aqueous distillate, is twice the strength of the former. Action and Uses : Rose-water and stronger rose-water are used for flavoring. Saccharum (Sacch.), Sugar, U. S. P.—Refined sucrose, C12H22O11, obtained from various sources. Properties: Sugar is official in the form of white, dry, hard, dis- tinctly crystalline granules, odorless and having a purely sweet taste. It is very soluble in water (1: 0.5) and soluble in alcohol (1: 170). Action and Uses : In medicine it is used for its sweet taste. Properly prepared concentrated sugar solutions, such as the official syrups, have good keeping qualities; dilute sugar solutions are prone to undergo fermentation. Saccharum Lactis ( Sacch. Lact.), Sugar of Milk, U. S. P. (Milk-Sugar, Lactose).—A crystalline sugar, C12H22O11+ H2O, obtained from the whey of cow’s milk by evapora- tion, and purified by recrystallization. Properties: Sugar of milk occurs as white, hard, crystalline masses or a white powder feeling gritty on the tongue, odorless and having a faintly sweet taste. It is freely soluble in water (1:4.9). but practically insoluble in alcohol. Action and Uses: Sugar of milk is used as a diluent, and also as a fqod. particularly in connection with modified milk for infants. Santoninum (Santonin.), Santonin, U. S. P.—The inner anhydrid or lactone of santonic acid obtained from Artemisia cina and possibly other species of Artemisia. Properties: Santonin occurs as colorless, rhombic prisms or a crystalline powder, odorless and nearly tasteless when first put into the mouth, but afterward developing a bitter taste. It is very slightly soluble in water (1: 5,300), and soluble in alcohol (1: 43). Action and Uses : Santonin is used for its action on intestinal parasites, especially a ga insTWounff ~ worms7~IrUproper dosesTand' given under medical super- vision it may be prescribed with reasonable safety. When absorbed to a sufficient extent to produce symptoms, the chief effects are yellow vision and epTTeptiform convulsions. 130 USEFUL DRUGS Dosage: 0.06 Gm. or _1_ graiq. It is frequently admin- istered j.vith calomel As absorption is to be avoided the remedy is preferably administered in the form of coarse crystals, either inclosed in a capsule or made up into a lozenge rather than in finely powdered form. The soluble sodium santoninate should be avoided as a vermifuge. Sapo, Soap, U. S. P. (White Castile Soap).—Soap prepared from sodium hydroxid and olive-oil (Castile soap). Properties: Soap occurs as a white or whitish solid, hard yet easily cut when fresh, or as a fine yellowish white powder, having a faint peculiar odor free from rancidity, a disagreeable alkaline taste and an alkaline reaction. It is soluble in water and in alcohol. Linimentum Saponis (Lin. Sapon.), Soap Liniment, U. S. P. (Liquid Opodeldoc).—A solution of soap, cam- phor and oil of rosemary in a mixture of alcohol and water. Action and Uses : Soap liniment applied externally is stimulant and rubefacient, but is used more frequently as a vehicle for the local 'application of other more active counterirritants. Sapo Mollis (Sapo Moll.), Soft Soap, U. S. P.—A soap pre- pared from potassium hydroxid and cottonseed oil. Properties: Soft soap occurs as a soft, unctuous, yellowish-white to yellowish-brown mass, having a characteristic odor and an alkaline taste. Action and Uses : Soft soap is used principally as a detergent; being soluble in alcohol, and in mixtures of '‘alcohol and water it is frequently used as a liquid soap. A convenient form is the “Tincture of Green Soap,” Lini- mentum Saponis Mollis, U. SUP:; an alcoholic solution con- taining about 65 per cent, of soft soap, flavored with oil of lavender. Soft soap is also used to some extent as a vehicle for other more active ipedicaments to Jbe applied in the form of an ointment. Scopolaminae Hydrobromidum (Scopolamin. Hydrobrom.), Scopolamin Hydrobromid, U. S. P. (Hyoscin Hydro- bromid, Hyoscin Bromid).—The hydrobromid, C17H21N 04.HBr+3H20, of an alkaloid (levorotatory scopolamin) obtained from plants of the S'olanaceae. Properties: Sdopolamin hydrobromid forms colorless crystals, odor- less, having, in dilute solutions, an acrid, slightly bitter taste, freely soluble in water (1: 1.5) and in alcohol (1: 20). Incompatibilities : Scopolamin hydrobromid is incom- patible with alkalies and other precipitants of alkaloids. Action and Uses : Scopolamin resemhles atrooin in its influence on the nerve endings, but differs, from it in having a sedative instead of a stimulating effect on the brain. It USEFUL DRUGS 131 is used as a cerebral sedative in cases of mania and other forms of insanity, but must be employed with caution, as it sometimes induces a rapid fall in t>loocl pressure and collapse. It has been extensively used in conjunction witfi morphin for the production of surgical anesth'esia7~eTfher as a preliminary to the use of ether or chloroform, or as the operation anesthetic. In doses sufficiently large to produce anesthesia, however, it is likely to cause dangerous depres- sion of the respiration. Experience in these methods of anesthesia has not been satisfactory. It has been employed as a partial anesthetic in laboj, but the effect on the fetus is sometimes disastrous, many children bemg“1}6rn dead or asphyxiated., / It is frequently used as a mydriatic and is regarded by some ophthalmologists as preferable To atropin because it is less irritating, and produces a brief and complete cycloplegia. Dosage : 0.3 mg. or V?nn grain. Senna (Senn.), Senna, U. S. P.—The dried leaflets of Cassia acutifolia (Alexandria senna), or of Cassia angustifolia (India or Tinnevelly senna). Action and Uses : Senna belongs to the anthraquinone- containing group of vegetable purgatives and is one of the t most efficient drugs of this class. It is largely used for the treatment of chronic - constipation. Dosage: 4 Gm. or 1 dram, administered either as the powder, or as an infusion, or preferably in the form of one of its official preparations. Fluidextractum Sennae (Fldext. Senn.), Fluidextract of Senna, U. S. P.—A hydro-alcoholic extract, 100 Cc. of which represent 100 Gm. of senna. Dosage: 2 Cc. or 30 minims. , Syrupus Sennae (Syr. Senn.), Syrup of Senna, U. S. P. —Represents a mixture of fluidextract of senna (25 Cc.) with syrup (sufficient to make 100 Cc.). ' Dosage: 4 Cc, or 1 fluidram- This is a pleasant prepara- tion, readily taken b^children. Pulvis Glycyrrhizae Compositus (Pulv. Glycyrrh. Co.), Compound Powder of Glycyrrhiza, U. S. P. (Compound Licorice Powder).—A mixture of senna (18 Gm.), glycyr- riuza (23.6 Gm.), sulphur (8 Gm.), oil of fennel (0.4 ' Gm.), and sugar (50 Gm.). Action and Uses : Pulvis Glycyrrhizae Compositus has been widely used as a laxative. Dosage: 4 Gm. or 1 dram, administered mixed with a suitable licuflid. -preferably milk. 132 USEFUL DRUGS SERA ET VACCINA, SERUMS AND VACCINES.— The vaccines, viruses and serums constitute one of the most important groups of drugs with which the physician has to deal. Some preparations of this group are specific cures for certain diseases; others are invaluable in pro- phylaxis and diagnosis. The supervision of these drugs is in charge of the United States Public Health Service, which periodically makes inspections of laboratories licensed in accordance with the law passed by Congress in 1902. Antidiphtheric and antitetanic serums are required to conform strictly to the standards which have been estab- lished by the United States Public Health Service. There- being no established standard for the various other prod- ucts, they are not examined for their therapeutic value but are tested for the amount of preservative and freedom from bacterial and toxic contaminations. (See also Vaccina.) Serum Antidiphthericum Purificatum (Ser. Antidiph. Purif.) Purified Antidiphtheric Serum, U. S. P. (Antidiphtheric Globulins, Concentrated Diphtheria Antitoxin, Diphtheric Antitoxin Globulins, Refined and Concentrated Diphtheria Antitoxin).—A solution in physiologic sodium chlorid solution of certain antitoxic substances obtained from the blood serum or plasma of the horse which has Teen properly immunized against diphtheria toxin. This product has the advantage of diminishing The incidence of serum disease. Properties: Antidiphtheric serum occurs as a yellowish or yellowish-brown, transparent or slightly turbid liquid, nearly odorless or having a slight odor due to the presence of an antiseptic used as a preservative. The standard of strength, expressed in units of antitoxic power, must be that approved or established by the ‘United States Public Health Service. | Action and Uses: Purified antidiphtheric serum neutral- izes the toxin of diphtheria and is employed botnasa Curative and as a prophylactic agent in that disease. It is to )e administered hypodermically. i, Dosage: The dose of purified diphtheria antitoxin is sneasured by antitoxic units. Five hundred, or better,. 1,000 ynits. are given as an immunizing or prophylactic dose" For curative treatment from 5.000 to 40.000 units should be given as an initial dose, according to the severity of the symptoms. 'Subsequent injections are much less effectual and usually are not required if a sufficient initial dose has been given. In urgent cases it may be given intravenously. If there is reason to fear hypersusceptibility to horse serum, 0.1 Cc. may be administered the dose hourly till the full dose is given. Serum Antimeningococcicum (Ser. Antimening.), Antimenin- gococcus Serum.—A fluid separated from the coagulated blood of horses which have been properly immunized against antimeningococcus cultures. USEFUL DRUGS Properties: Antimeningococcus serum occurs as a yellowish or yellowish-brown, slightly turbid liquid, odorless or having an odor due to the presence of the antiseptic used as preservative. There are no standards of potency and the rate of deterioration is not known. Action and Uses : Effective as a curative agent. Dosage: The serum is to be used only intrathecally, the usual procedure being to withdraw spinal" fluid and mtro- duce an equal amount or somewhat less of the serum. The dose varies; 5 Cc. may be considered the maximum safe dose for a voting child and 30 Cc. for an aclult- Serum should be continued so long as active symptoms remain. Serum Antitetanicum Purificatum (Ser. Antitetan. Purif.), Purified Antitetanic Serum, U. S. P. (Antitetanic Globulins, Concentrated Tetanus Antitoxin, Refined and Concentrated Tetanus Antitoxin, Solution of Tetanus Antitoxic Globulin).—A solution in physiologic solution of sodium chlorid of certain antitoxic substances obtained from the blood serum or plasma of a horse which has been properly immunized against tetanus toxin. Properties: Antitetanic serum occurs as a yellowish or yellowish- brown, transparent or slightly turbid liquid, odorless or having an odor due to the presence of the antiseptic used as a preservative. It gradually loses its potency, the loss being greater at higher than at lower temperatures. The standard of strength expressed in units of antitoxic power must be that approved or established by the United States Public Health Service. Action and Uses : Effective as a prophylactic |and of some value as a curative: agent in tetanus. Dosage : Immunizing dose, on day of wound and repeated weekly till healed: 1,500 units subcutaneously. In actual tetanus, 3,000 to 5,000 units,, diluted with an equal volume of physiologic solution ot sodium chlorid, intraspinally, and 10,0QQ_units intravenously _at the possible moment; the intfaspTiEll" dose to be repeated daily until recovery is assured, and units to be given subcutaneously on the fourth, day. ~ Sinapis Nigra (Sinap. Nig.), Black Mustard. U. S. P. (Brown Mustard).—The seed of Brassica nigra. Action and Uses : Mustard is used extensively as a counter-irritant. When mustard is mixed with water, the "volatile oil is generated by the action of a ferment, myrosin, on a principle called sinigrin, contained in black mustard. Dosage : As an emetic, 8 Gm. oj 120 grains, s^ispftided in a liberal amount of water. Emplastrum Sinapis (Emp. Sinap.7, Mustard Plaster, U. S. P. (Charta Sinapis, U. S. P., VIII, Mustard Paper). —A coating of black mustard on rather thick, well-sized paper, cotton cloth or other fabric, used in place of the 134 USEFUL DRUGS domestic mustard poultice. The latter has, however, the advantage that its strength may be modified according to the sensitiveness of the skin. While, for a man, it may be prepared by mixing equal parts of mustard and of flour, it is preferable to use twice as much flour for women and four times as much for children. Duration of application is from fifteen to thirty minutes. *£)leum Sinapis Volatile (Ol. Sinap. Vol.), Volatile Oil of Mustard, U. S. P. (Mustard Oil).—A volatile oil obtained from black mustard by maceration with water and subsequent distillation, yielding, when assayed by the process given in the U. S. Pharmacopeia, not less than 92 per cent, of allyl iso-thiocyanate. Properties: Volatile oil of mustard occurs as a colorless or pale yellow, limpid liquid, having a very pungent and irritating odor. Great caution should be exercised when smelling this oil, and it should not be tasted without being highly diluted. It is miscible with alcohol in all proportions, and is generally soluble in liquids con- taining alcohol. Dosage: 0.008 Cc. or Vs minim. Rarely used internally; chiefly employed as counterirritant in liniments up to 3 per cent. Action and Uses : See Sinapis Nigra. Sodii Benzoas (Sod. Benz.), Sodium Benzoate, U. S. P.— Contains not less than 99 per cent, of NaCrHsCb. Properties: Sodium benzoate occurs as a white, amorphous powder, odorless, and having a sweetish taste. It is freely soluble in water (1:1.8) and soluble in alcohol (1:61). Incompatibilities: It is incompatible with mineral acids and with ferric salts. Action and Uses: Sodium benzoate has an internal action similar to that of hpnzoir acid {q. v.). Dosage: 1 Gm. or grains. It is usually administered in the form of soluliou. Sodii Bicarbonas (Sod. Bicarb.), Sodium Bicarbonate, U. S. P. —Contains not less than 99 per cent, of NaHCCb. Properties: Sodium bicarbonate occurs as a white, opaque powder, odorless and having a cooling, mildly alkaline taste. It is soluble in water (1:10) at IS C., practically without decomposition, but above this temperature the solution gradually loses carbon dioxid, and at the boiling point of water the salt is converted into normal car- bonate; it is practically insoluble in alcohol. Incompatibilities : Sodium bicarbonate is incompatible with acids and acid salts, and the solution should be made with cold water,’which tends to prevent its conversion into the more alkaline carbonate. Action and Uses : Sodium bicarbonate alone or in com- bination with bismuth subcarbonate or magnesia is used to neutralize the acid of the gastric juice in hyperacidity, acid etc. It is used to render the urine aTkajine.in gravel, pyelitis, etc. USEFUL DRUGS 135 .Large doses are given by the mouth in cases of qcidosis in* diabetes or from any other cause. Sodium bicarbonate " “may be used intravenously in cases of extreme acidosis. It should neypr, be miectecTTivpodermicaTry or mtramTTs- cularly unless special precautions are observecb~as it ts very likely to cause sloughing. (See under Dosage.) .Externally it is used as a mild alkaline wash. Solu- tions of sodium bicarbonate are antipruritic.' Absolution is employed to soften impacted Sodium bicar- bonate may be employed to neutralize acetic or citric acids for the extemporaneous preparation of sodium acetate or citrate. Dosage: 1 Gm. or 15 grains. Much larger doses may be given in acidosis. AT much as 60 Gm. or 2 ounces may be given daily. It may be administered by a “drop enema” of a 4 per cent, solution. For intravenous injection a Tf~Per— cent, solutioTT slerilrzed by boiling and hence partly con- verted into the carbonate has been recommended. One thousand Cc. of such a solution may be injected, but great care must be taken that none of the liquid gets outside the vein lest necrosis of the tissues occur. In certain exceptional cases where sodium bicarbonate cannot be given by mouth or intravenously it may be injected subcutaneously or intramuscularly in 3 or 4 per cent, strength. After thorough sterilization and cooling of the solution, carbon dioxid should be bubbled through the solution until it is colorless to phenolphthalein. The solution is then much less lilqely to cause necrosis. * , • Sodii Biphosphas (Sod. Biphos.), Sodium Acid Phosphate, N. N. R.—The monosodium dihydrogen salt, NaH2PC>4+ FLO, of orthophosphoric acid, H3PO4. Properties: Sodium acid phosphate occurs as large, colorless, trans- parent crystals or a white, granular crystalline powder, odorless and having a cooling, saline and somewhat acid taste; slightly deliquescent. It is very soluble in water; insoluble in alcohol, ether and chloroform. Action and Uses : Sodium acid phosphate undergoes no .change in the stomach, but in the intestine is neutralized, Ty"alkali drawn trom the blood, into disodium hydrogen phosphate. The reduction of the alkalinity of the system which would otherwise result is prevented by the excretion of acid in the urine. Sodium acid phosphate thus renders the urine acid or increases its acidity, and is therefore used to assist the action of hexamethylenamin, which is effective only in acid urine. For this purpose the acid phosphate should be given long enough in advance so that it will have left the stomach before the hexamethylenamin enters it. In larger doses sodium acid phosphate produces laxative effects similar to those produced by the official disodium hydrogen phosphate (sodium phosphate, U. S. P.). Dosage: From 1 to 1.5 Gm. (15 to 20 grains), in water, repeated every two or three hours, for five or ten doses, until the urine becomes acid. Sodium acid phosphate may 136 USEFUL DRUGS be administered in sweetened water like lemonade. It should not be prescribed in solution with hexamethy- lenamin. Note: By the addition of 1 Cc. of dilute hydrochloric acid or 4 Cc. of dilute phosphoric acid to each gram of sodium phosphate (U. S. P.), the latter is converted into the acid phosphate and may be used to render the urine acid. Sodii Boras (Sod. Bor.), Sodium Borate, U. S. P. (Borax, Sodium Tetraborate, Sodium Pyroborate).—Corresponds to not less than 99 per cent, of NasBjOi+lOI-LO. Properties: Sodium borate occurs as colorless, transparent crystals or a white powder, inodorous, and having a sweetish alkaline taste. It is soluble in water (1: 15), but practically insoluble in alcohol. Incompatibilities : Sodium borate is decomposed by min- eral salts and is incompatible with mucilage of acacia, with the metallic salts of the mineral acids and with the salts of most alkaloids. Action and Uses : Sodium borate is antiseptic, astringent and detergent and is used both externally and sometimes internally in the form of solution. The continuous inges- tion of even small doses produces a deleterious effect. Moderate to large doses may cause nephritis. Very large doses cause gastro-enteritis, nephritis, skin eruptions, visual disturbances, fall of temperature, collapse and a wide- spread fatty degeneration. It is used in from 1 to 2 per cent, solution as an eye-wash in hyperemia of the con- junctiva and catarrhal conjunctivitis. For this purpose the following formula is very service- able : Sodii boratis 0.5 Gm. Aquae camphorae 5.0 Cc. Aquae destillatas ad. 25.0 Cc. It is sometimes used as an antipruritic solution : IJ Sodii boratis 1.0 Gm Glycerini 0.6 Cc. Aquae 30.0 Cc. It may be used as a gargle. Dosage : 0.5 Gm. or 8 grains. Sodii Bromidum (Sod. Brom.), Sodium Bromid, U. S. P.— Contains not less than 98.5 per cent, of NaBr. Properties: Sodium bromid occurs as colorless or white, cubical crystals, or a white, granular powder odorless, and having a saline, slightly bitter taste. It is freely soluble in water (1:1) and soluble in alcohol (1: 16). Action and Uses: Sodium bromid is used as a nerve sedative and cerebral depressant and in ordinary doses its action and uses are identical with those of potassium bromid, but it is probably less irritating to the stomach. See Potassium Bromid. USEFUL DRUGS 137 Dosage: 1 Gm. or 15 grains. It is preferably adminis- tered in dilute aqueous solution or in milk. Sodii Cacodylas (Sod. Cacodyl.), Sodium Cacodylate, U. S. P. —Sodium dimethylarsenate, Na(CH3)-AsO.', the sodium salt of cacodylic acid (dimethyl arsenic acid), with a somewhat variable amount of water of crystallization. Properties: Sodium cacodylate occurs as white crystals or a granu- lar powder, very soluble in water (1:0.5) and in alcohol (1:2.5). The aqueous solution is alkaline toward litmus paper, but nearly neutral toward phenolphthalein. Action and Uses : The action of sodium cacodylate is similar to that of other arsenic compounds, but it is much less toxic than the ordinary preparations of arsenic and is also less apt to cause undesirable side effects. This superiority is due to the slow liberation of the arsenous acid in the body. Sodium cacodylate has been particularly recommended in pseudoleukemia, anemia, chlorosis, malarial cachexia, etc. It has been tried in syphilis but is inefficient even in large doses, which injure the kidneys. As it is some- times decomposed in the stomach, imparting a garlic odor to the breath, it is preferable to give it hypodermically or intramuscularly. Dosage: 0.03 to 0.06 Gm. or % to 1 grain, hypodermically or intramuscularly in aqueous solution; or by mouth in elixir or in the form of pills. Sodii Carbonas Monohydratus (Sod. Carb. Monohyd.), Mono- hydrated Sodium Carbonate, U. S. P.—The form in which sodium carbonate is now official. Contains not less than 99.5 per cent, of NasCOs+ELO. Properties: Monohydrated sodium carbonate occurs as a white, crystalline, granular powder, odorless and having a strongly alkaline taste. It i.s freely soluble in water (1:3) and practically insoluble in alcohol. Sodium carbonate, as now official, contains but one molecule of water of crystallization, and is nearly twice as strong in alkaline power as the ordinary crystalline carbonate, + 10H2O, commonly known as “sal soda.’’ Incompatibilities: Sodium carbonate is incompatible with acids and acid salts and with the salts of the heavy metals and of alkaloids. Action and Uses : Sodium carbonate is a fairly cor- rosive alkali. It is employed in medicine chiefly in the preparation of alkaline baths. For this purpose it may be used in the proportion of from 2 to 6 ounces for 30 gallons of water. Dosage: 0.25 Gm. or 4 grains, in dilute solution. Sodii Chloridum (Sod. Chlorid.), Sodium Chlorid, U. S. P. (Common Salt).—Contains not less than 99 per cent, of NaCl. 138 USEFUL DRUGS Properties: Sodium chlorid occurs as colorless, cubical crystals or as a white crystalline powder, odorless and having a purely saline taste. It is freely soluble in water (1:2.8) and nearly insoluble in alcohol. Incompatibilities : Sodium chlorid is incompatible with salts of silver and lead. Action and Uses : Sodium chlorid is used for preparing physiologic solution of sodium chlorid: 8.5 Gm. to 1,000 Cc. of sterile water (Liquor Sodii Chloridi Physiologicus, U. S. P.). This solution is frequently referred to as normal salt solution, but should not be confused with the chemical nor- mal solution of sodium chlorid. When given by mouth in large doses sodium chlorid are emetic, and, in proper dilu- tion, laxative. Dosage: As an emetic, 15 Gm. or 4 drams. As a laxa- tive it is given in 1 per cent, solution. The dose, 4 Gm. or 60 grains, should be dissolved in from 0.25 to 0.5 liter (from V2 to 1 pint) of water and drunk on an empty stomach. Sodii Hydroxidum (Sod. Hydrox.), Sodium Hydroxid, U. S. P. (Caustic Soda, Sodium Hydrate).—Contains not less than 90 per cent, of NaOH. Properties: Sodium hydroxid occurs as dry, white or nearly white flakes, fused masses or hard and brittle sticks, showing a crystalline fracture; odorless, and, in dilute solutions, having a caustic taste. Great caution is necessary in tasting and handling it, as it rapidly destroys organic tissue. It is very soluble in water (1:0.9) and in alcohol. Action and Uses : Sodium hydroxid has properties closely resembling those of potassium hydroxid. It is used chiefly for pharmaceutical purposes, though occasionally it is applied locally as a caustic or in dilute solution as an alkaline wash. Solution of sodium hydroxid largely diluted has also been administered internally. Liquor Sodii Hydroxidi (Liq. Sod. Hydrox.), Solution of Sodium Hydroxid, U. S. P. (Liquor Sodae, Solution of Soda).—An aqueous solution containing not less than 4.5 per cent, of sodium hydroxid, NaOH. Dosage: 1 Cc. or 15 minims, well diluted. Sodii Iodidum (Sod. Iod.), Sodium Iodid, U. S. P.—Nal. Properties: Sodium iodid occurs as colorless, cubical crystals, or as a white, crystalline powder, odorless and having a saline and slightly bitter taste. It is very soluble in water (1:0.5) and freely soluble in alcohol (1: 3). Incompatibilities : Sodium iodid is incompatible with spirit of nitrous ether, bismuth salts, ferric salts, and the salts of many alkaloids. Action and Uses : Sodium iodid has properties closely resembling those of potassium iodid, and like sodium bromid is perhaps less irritating than the potassium salt. It is used in small doses to prevent simple goiter in “goitrous” regions. USEFUL DRUGS 139 Dosage: Average, 0.5 Gm. or 8 grains. For ordinary cases the dose may range from 0.3 to 1.25 Gm. or from 5 to 20 grains. When employed for the energetic treatment of tertiary syphilis it is sometimes necessary to increase the dose to from 2 to 5 Gm. or from 30 to 75 grains or more. It should not be given on an empty stomach but should be administered after meals, freely diluted with liquid, pre- ferably milk. For prevention of simple goiter, 2 grams may be given in 0.2 Gm. doses (either solid, or in solution) for ten consecutive school days, repeated twice yearly. Sodium or potassium iodid, 1 Gm., mixed with 1 Kg. of table salt to be used as condiment for food will serve as a means of supplying an adequate amount of iodin for prophylactic purposes. Sodii Nitris (Sod. Nitris), Sodium Nitrite, U. S. P.—Con- tains not less than 95 per cent, of NaNCb. Properties: Sodium nitrite occurs as white, or nearly white, opaque, fused masses or sticks or as colorless, transparent crystals which are odorless and have a mild saline taste. It is freely soluble in water (1: 1.5) and very slightly soluble in alcohol. Incompatibilities : It is incompatible with oxidizing agents generally. It must be protected from contact with the air on account of its tendency to oxidation. Action and Uses : Sodium nitrite has the characteristic properties of the nitrites, and resembles nitroglycerin in its action, though its effect is manifested more slowly and is somewhat more lasting. It sometimes produces gastric disturbance. Dosage: 0.06 Gm. or 1 grain. It should be administered in solution. Sodii Phosphas (Sod. Phos.), Sodium Phosphate, U. S. P.— Contains not less than 99 per cent, of Na2HP04-f-12H20. Properties: Sodium phosphate occurs as large, colorless, mono- clinic prisms, or a granular, crystalline salt, odorless, and having a cooling saline taste. It is freely soluble in water (1:5.5), but practically insoluble in alcohol. Action and Uses : Sodium phosphate is used as a saline cathartic. Its mode of action has much in common with magnesium sulphate and sodium sulphate. Its taste is less disagreeable, but it is also less active. Dosage: 2 Gm. or 30 grains dissolved in warm water. It may also be administered in liquid form by adding 4 parts of sodium nitrate, 13 parts of citric acid and a little water to 100 parts of sodium phosphate. Sodii Phosphas Effervescens (Sod. Phos. Eff.), Effer- vescent Sodium Phosphate, U. S. P.—A mixture of exsiccated sodium phosphate, sodium bicarbonate, tar- 140 USEFUL DRUGS taric acid and citric acid, representing approximately 50 per cent, of sodium phosphate as described above. Dosage : 10 Gm. or 2Vz drams. Sodii Salicylas (Sod. Salicyl.), Sodium Salicylate, U. S. P.— Contains not less than 99.5 per cent, of NaGHsOs. Properties: Sodium salicylate occurs as white microcrystalline powder or scales, or as an amorphous, white powder, having not more than a faint pink tinge, odorless, and having a sweet saline taste. It is very soluble in water (1: 0.9) and freely soluble in alcohol (1: 9.2). Incompatibilities : Sodium salicylate is incompatible with acids and acid salts and with solutions of most alkaloids, notably quinin, which precipitates as the sali- cylate. It gives a violet color to iron salts. Action and Uses: Sodium salicylate is the salt which is usually employed to secure the constitutional effects of salicylic acid. It is an analgesic and antipyretic. It is sometimes administered foT’-tlie rehet ot headache or of neuralgic pains, but is chiefly used for its effect in articular rheumatism in which it is highly efficacious. It promptly relieves all the local joint symptoms and the fever, but does not affect the endocarditis. Its effects last only while the medication is kept up. It is useful in tonsillitis and other catarrhal inflammations, but has not the decided action in the ordinary infections that it has in rheumatic fever. It is used in chorea. It is of no value in gonorrheal arthritis and arthritis deformans, and of little value in gout. It is useful in some forms of eye diseases, such as iritis, keratitis or glaucoma. It is slightly antiseptic, but not so much so as the free acid. It is irritant to mucous membranes and may cause pain and even vomiting when large doses are administered on an empty stomach. Large therapeutic doses produce a ringing in the ears, nausea, sometimes vomiting, occasional sweating and an increase in the amount of urine. It increases nitrogenous metab- olism, and an increased amount of uric acid is excreted in the urine. It stimulates the secretion of bile. In very large doses it may produce depression of the central ner- vous system, rarely convulsions, a slowing and depression of the respiration, and collapse from depression of circula- tion. Large doses may produce abortion, and hence the drug is contraindicated in pregnancy. Dosage: 1 Gm. or 15 grains. The more efficient method is to repeat this dose every hour until salicylism occurs and then three times daily. It is well to combine it with alkali, such as sodium bicarbonate, so as to prevent its precipitation in the form of salicylic acid by the hydro- chloric acid of the stomach. It should be given well diluted in simple solution, but is sometimes administered in the form of powder inclosed in capsules or cachets, and followed by a sufficient amount of water to dilute it well in the stomach. USEFUL DRUGS 141 Sodii Sulphas (Sod. Sulph.), Sodium Sulphate, U. S. P. (Glauber’s Salt).—Contains not less than 99 per cent, of Na2SCh+10H,O. Properties: Sodium sulphate occurs as large, colorless prisms or granular crystals, odorless and having a bitter saline taste. It is freely soluble in water (1:2) and practically insoluble in alcohol. Action and Uses: Sodium sulphate is used as a saline cathartic, but is less popular than magnesium sulphate or sodium phosphate. Dosage: 15 Gm. or 4 drams. Sodii Thiosulphas (Sod. Thiosulph.), Sodium Thiosulphate, U. S. P. (Sodium Hyposulphite).—Contains not less than 99 per cent, of NazSzOa+SHjO. Properties: Sodium thiosulphate occurs as colorless, transparent monoclinic prisms, odorless and having a cooling, afterward bitter taste. It is very soluble in water (I: 0.5) and practically insoluble in alcohol. Incompatibilities : Sodium thiosulphate is incompatible with acids, iodin and chlorin. It dissolves insoluble salts of silver. Action and Uses : Sodium thiosulphate is used exter- nally, in the form of lotion, as an application for ring- worm and other parasitic skin diseases. It may be used to remove stains of iodin or silver nitrate. Taken inter- nally, it is cathartic. Dosage: 1 Gm. or 15 grains. Externally, it is used in aqueous solution or ointment of 10 per cent, strength or 1 dram to the ounce. Stramonium (Stramon.), Stramonium, U. S. P. (Jamestown Weed, Jimson Weed).—The dried leaves of Datura stramonium or of Datura tabula. Its constituents and action are similar tot those of belladonna. Now seldom used in medicine except as an ingredient in so-called asthma powder for smoking which may be prepared from ground or granulated leaves to which is added one-eighth to one-fourth its weight of potassium nitrate. Strophanthinum (Strophanthin.), Strophanthin, U. S. P.—A glucosid, or mixture of glucosids, obtained from stro- phanthus. Properties: Strophanthin occurs as a white or faintly yellowish powder, having an intensely bitter taste. Because of its toxicity great caution should be used in tasting it. It is very soluble in ■water and in diluted alcohol, but less soluble in absolute alcohol. Action and Uses: The effects of strophanthin are prac- tically identical with those of digitalis. It is not readily absorbed from the gastro-intestinal tract; hence its oral use is not recommended. When injected intravenously or 142 USEFUL DRUGS intramuscularly, however, its action is much more prompt. It therefore deserves preference in emergencies. It is also excreted more rapidly, so that there is less danger of cumulative action. Dosage: 0.3 mg. or %oo grain. It is best administered intramuscularly or intravenously, only a single dose being given daily, as a rule. The commercial strophanthins often contain varying amounts of ouabain (g-strophanthin or crystallized stro- phanthin), which is more active than the amorphous strophanthin. Caution should be exercised in using these preparations, especially in passing from the use of one preparation to that of another, and especial caution should be exercised if the patient has had other digitaloids pre- viously. Strophanthus (Strophanth.), Strophanthus, U. S. P.—The ripe seed of Strophanthus kombe or of Strophanthus hispidus. Action and Uses : Strophanthus and tincture of stro- phanthus have properties similar to those of the glucosid strophanthin, though the therapeutic results from the administration of strophanthus by mouth are more variable than the results obtained from the hypodermic or intrave- nous administration of strophanthin. It is doubtful if it has any advantages over the tincture of digitalis. Tinctura Strophanthi (Tr. Strophanth.), Tincture of Strophantiius, U. S. P.—One hundred Cc. represent 10 Gm. strophanthus in approximately 92 per cent, of alcohol. It is nearly identical with the international standard tincture of strophanthus. If assayed biologically, the minimum lethal dose of tincture of strophanthus is not greater than 0.00006 Cc. for each gram of body weight of the frog. Dosage: 0.5 Cc. or 8 minims, 3 times daily after meals. The undiluted tincture is best prescribed to be taken in drop dosage, or else an alcoholic vehicle should be chosen. Not only is the tincture pharmaceutically incompatible with water, but aqueous solutions undergo rapid decom- position. For intramuscular or intravenous injection a much smaller dose should be given, not more than 0.12 Cc. or 2 minims, as a rule. Strychninae Nitras (Strych. Nit.), Strychnin Nitrate, U. S. P. —The nitrate C21H22O2N2.HNO3, of the alkaloid strychnin. Properties: Strychnin nitrate occurs as colorless, needle-shaped crystals, odorless, and having an intensely bitter taste. It is perma- nent in air, soluble in water (1: 42) and slightly soluble in alcohol (1: ISO). Action and Uses : See Strychninae Sulphas. Dosage: 0.0015 Gin. or *4o grain. USEFUL DRUGS 143 Strychninae Sulphas (StTych. Sulph.), Strychnin Sulphate, U. S. P.—The sulphate H,SO«+5H,Of of the alkaloid strychnin. Properties: Strychnin sulphate occurs as colorless or white pris- matic crystals, or a white crystalline powder, odorless, and having an intensely bitter taste. It is efflorescent in dry air, soluble in water (1:32) and in alcohol (1:81). Dosage: 0.001-5 Gm. or o grain. Incompatibilities : The salts of strychnin are incom- patible with alkalies, alkali carbonates, iodids, bromids, arsenates and arsenites. Action and Uses: Strychnin stimulates the reflex activity_ ofthespinalcord. but produces little or no elfect on the Large doses raise the blood- pressure by stimulating the vasoconstrictor center. It seems to have little direct effect on the heart. It stimulates the respiratory center, increasing the rapidity of the respirations. In poisonous doses it produces tonic con- vulsions similar to those of tetanus, but the trismus is less marked. Between the attacks there is usually complete relaxation of the affected muscles. The convulsions are spinal, but not cerebral in origin. Death may occur, during a convulsion, from fixation of the chest by spasm of the respiratory muscles or during the interval from medullary paralysis. Strychnin is used as a bitter tonic, generally in form of a preparation of nux vomica. It is also a tonic to the muscular system. It has been widely used as a respiratory and circulatory stimulant in pneumonia and. other infections, shock, etc., but careful observations have shown that nontoxic doses are ineffective. Strychnin is serviceable in some forms of paralysis.,- It is of no value when the paralysis results from an organic lesion and should not be employed in conditions of inflammation of the nerve centers. It may be given in paralysis due to poisons, such as lead, and in postdiphtheric paralysis. It is also of value in paralysis due to cortical lesions, if used in moderate doses, to improve the tone and with it the nutrition of the paralyzed muscles. In incontinence of urine, due to paresis of the vesical sphincter, it is useful, but if the incontinence depends on spasm, atropin is more serviceable. Strychnin is useful in amblyopia, acting best in disturbance of vision unattended by changes visible with the ophthalmoscope, especially hysteric and neuras- thenic forms. In lesions of the optic nerve it frequently produces an improvement in vision, which, however, is only temporary. It is used in acute and chronic alcoholism. It is added to cathartics in the treatment of chronic con- stipation, but probably with little if any advantage. Dosage: From 0.0005 Gm. (0.5 mg.) to 0.005 Gm. or from to Vi2 grain, 3 times a day or, in the case of the smaller doses, as often as once in three hours. 144 USEFUL DRUGS Sulphonethylmethanum (Sulphonethylmeth.), Sulphonethyl- methane, U. S. P. (Trional).—Diethylsulphone methyl ethyl methane, (CHa) (CjEL) Properties: Sulphonethylmethane occurs as colorless, odorless, crystalline scales, which have a bitter taste in aqueous solution. It is slightly soluble in water (1:200) and freely soluble in alcohol. Action and Uses: Sulphonethylmethane is a hypnotic, producing, in ordinary doses, tp other symptoms than sleep. The sleep comes on in about an hour after the medicine is taken. In some cases the sleep is not secured until the next day. Sulphonethylmethane, when repeatedly taken, may pro- duce poisoning in which hematoporphyrin appears in the urine, giving it a pinkish tinge or recHcoTor. The con- tinued use of the remedy may, dead to the formation of a habjt. In addition to the excretion of 'hematoporphyrin in fhe urine there are lassitude, weakness, nausea and gastro- intestinal disturbance as shown by diarrhea and constipa- tion. More serious symptoms then develop, including abdominal tenderness, violent vomiting, ataxia, paresis of various muscles, loss of reflexes, and finally a condition of profound collapse. This condition ends in death in about 75 per cent, of the cases. There is a nephritis which involves the glomeruli and may be hemorrhagic in character. Sulphonethylmethane is of little use when the insomnia is accompanied by severe pain. It has been recommended also as an antispasmodic in epilepsy, hiccup, chorea, etc. Dosage: 0.75 Gm. or 12 grains. Owing to its sparing solubility, it should be tfVFPn large quantities of hot liquids. It should not be used for more than two or three days consecutively. "Ailer this time recourse should be had toSffier""Hypnotics, if necessary. The appearance of hema- toporphyrin, as indicated by pink color in the urine, should be watched for and the remedy suspended on its occurrence, but it is then often too late. It may be effectively given with barbital (aa 0.3 Gm.) to secure a continuous sleep for the entire night. Sulphonmethanum (Sulphonmeth.), Sulphonmethane, U. S. P. (Sulphonal).—Diethylsulphone dimethyl methane, (CHs)i C(S02GH5)2. Properties: Sulphonmethane occurs as colorless, inodorous and nearly tasteless crystals or a crystalline powder, slightly soluble in water (1: 365), but soluble in alcohol (1:60). Action and Uses : Sulphonmethane, or sulphonal, is hypnotic and sedative, similar to Sulphonethylmethane, which see. It has the same dangers and drawbacks. It acts more slowly than sulphonethylmethane and is best given about 5 p. m. Dosage: 0.75 Gm. or 12 grains, given in a hot liquid. USEFUL DRUGS 145 Sulphur, Sulphur.—Official in the U. S. Pharmacopeia under three headings: Sulphur Lotum (Sulph. Lot.), Washed Sulphur, U. S. P. Sulphur Praecipitatum (Sulph. Praec.), Precipitated Sulphur, U. S. P. Sulphur Sublimatum (Sulph. Sublim.), Sublimed Sul- phur, U. S. P. Properties: Sulphur in any of the foregoing forms should contain not less than 99.5 per cent, of pure sulphur. Sulphur occurs as a fine yellow powder, the sublimed variety having a slight odor and a faintly acid taste. The other varieties are without odor or taste and all are practically insoluble in water or in alcohol. Action and Uses: Sulphur becomes active in the tines and on the skin by a partial conversion into hydrogen iuTphid or other sulphids. These products are antiseptic and irritant. By undergoing such conversion in the intes- tines, sulphur becomes a mild purgative. Sulphur is employed externally as a parasiticide against scabies ; and in seborrheal conditions. It is also used to produce sul- phur dioxid for room disinfection, especially against insect- borne diseases, such as vellowUever or malaria, by burn- ing it in the proportion of 3 pounds of sulphur to each 1,000 cubic feet of air space. All surfaces and articles to be disinfected should be wet. Dosage: Each form, 4 Gm. or 60 grains, as laxative. Unguentum Sulphuris (Ung. Sulphur Oint- ment, U. S. P.—A mixture of washed sulphur (15 Gm.) with benzoinated lard (85 Gm.). When applied to the face, it may be diluted with five parts of an ointment base. Terebinthina (Terebinth.), Turpentine, N. F.—A concrete oleoresin obtained from Pinus palustris. The source of: Oleum Terebinthinae (Ol. Tereb.), Oil of Turpentine, U. S. P. (Turpentine Oil, “Spirits of Turpentine”).—A volatile oil recently distilled from turpentine. Official in the Pharmacopeia also under the title Oleum Terebin- thinae Rectificatus (01. Tereb. Rect.), Rectified Oil of Turpentine, U. S. P. Properties: Oil of turpentine occurs as a thin colorless liquid, having a characteristic odor and taste, both of which become stronger and less pleasant by age and exposure to air. Oil of turpentine is practically insoluble in water, but freely soluble in alcohol (1:3), and in all proportions of oil. Action and Uses : Oil of turpentine is antiseptic, anthel- mintic and diuretic. Only the rectified' nil shniiTiTEe jised internally. Applied externally it is rubefacient and counter- irritant. 146 USEFUL DRUGS Oil of turpentine has been used as an expectorant in cases of bronchitis characterized by free secretion. For this purpose it is now generally replaced by terpin hydrate. It is also given for the relief of flatulence and a small amount (from V2 to 1 teaspoonful emulsified by means of yolk of egg) may be added to enemas to increase their effectiveness. Applied as a stupe over the abdomen it is used to relieve tympanites. Oil of turpentine has been thought to be efficient in cases of internal but this opinion is not well founded Dosage: 0.3 Cc. or 5 minims (rectified oil). It may be administered in the form of emulsion or in capsules. Terpini Hydras (Terpin. Hyd.), Terpin Hydrate, U. S. P.— The hydrate, of the diatomic alcohol terpin. Properties: Terpin hydrate occurs as colorless, lustrous, rhombic prisms, nearly odorless, and having a slightly aromatic and somewhat bitter taste. It is slightly soluble in water (1: 200) and freely soluble in alcohol (1: 13). Action and Uses : Terpin hydrate has some antiseptic, diaphoretic and diuretic properties, but it is chiefly used as an expectorant in bronchitis accompanied by free secre- tion. Dosage: 0.125 Gm. or 2 grains. Terpin hydrate may be administered in the form"of powder or in capsules. As a solution, usually in the formT ot elixir, it requires an excessive amount of alcohol. Theobromina (Theobrom.), Theobromin, N. N. R.—3,7- dimethyl-xanthin, a base occurring in Theobroma cacao, and also made synthetically. It is closely related to caffein (1,3,7-trimethyl-xanthin). Properties: Theobromin occurs as a white, crystalline powder, odorless, and having a bitter taste. It is very slightly soluble in water, but is soluble in alcohol (1: 100). Action and Uses: Theobromin has actions on the kid- neys and heart similar to caffein, but Tts effect 7)11 "The centfal nervous system is Jess marked. The relative freedom from side actions constitutes an advantage over caffein. Theobromin is employed as a diuretic in all forms of dropsy. It is nonirritating to the kidney. Because of its sTTgTit water-solubility, it is used in Form of thpohrnmin .sodium salicylate. •Theobrominae Sodio-Salicyas (Theobrom. Sodio-Sal.), Theobromin Sodium Salicylate, U. S. P. (Diuretin)..—A double salt of theobromin-sodium and sodium salicylate in approximately molecular ' proportions. Dosage: 0.3 Gm. or 5 grains. Properties: Theobromin sodium salicylate contains 50 per cent, of tbeobromin and occurs as a white powder, odorless and having a USEFUL DRUGS 147 saline taste. It is freely soluble in water (1: 1), but is readily decomposed on exposure to carbon dioxid or by the action of acids, and must therefore be preserved in well stoppered bottles. Incompatibilities : Theobromin sodium salicylate is incompatible with acids and has the other incompatibilities of salicylates. Dosage: 1 Gm. or 15 grains, three times a day. (Theophyll.), Theophyllin, U. S. P.—A feebly basic alkaloid, isomeric with theobromin. It is found in small amounts in the leaves of Thca sinensis, and is also prepared synthetically. Properties: Theophyllin is dimethylxanthin. It occurs as a white, crystalline powder; odorless and having a bitter taste. It is slightly soluble in water (1: 100) and in alcohol (1:80); it is perma- nent in the air. Action and Uses : Theophyllin is used in cardiac affec- tions, edemas, nephritis, etc. It has a djuretic"acIIorTsitTli- far to that of caffein or theobromin, but is more powerful, and often succeeds where the other agents fail. "However, the diuretic~resp(Ml!>e is not aslastlng; for this reason, it is advisable to replace it after two or three days by theo- bromin. Theophyllin may produce gastric and perhaps renal irritation, Dosage: 0.2 to 0.35 Gm. or 3 to 5 grains, three times daily in hot tea. f Thymol, Thymol, U. S. P.—A phenol, GH3(CHs)(OH) (C3H7), 1:3:4, occurring in the volatile oil of Thymus vulgaris and in some other volatile oils. Properties: Thymol occurs as large, colorless prisms, having an aromatic, thyme-like odor, and a pungent, aromatic taste. It is only very slightly soluble in water (1:1,010), but freely soluble in alcohol (1:1). Action and Uses: Thymol is antiseptic and anthel- mintic. As an anthelmintic it is used chiefly for the destruction of hookworm Dosage: As intestinal antiseptic. 0.125 Gm. or 2 grains; as anthelmintic, 2 Gm. or 30 grains, with the usual rnodi- ficafions“fbf'age. It is acTfhinisfered in fine powder, in capsules of 0.3 Gm., preceded and followed by a saline cathartic. As a mouth wash, a saturated watery solution may be used. No fats, oils or alcohols should be given at the same time as thymol, for fear of facilitating the absorption of the drug. Thymolis Iodidum (Thymol. Iod.), Thymol Iodid, U. S. P. (Aristol). — Dithymol - di - iodid, (CoH2.CH3.C.iH7.0I)2, obtained by the condensation of two molecules of thymol and the introduction of two atoms of iodin into the phenolic groups of the thymol. 148 USEFUL DRUGS Properties: Thymol iodid contains, when dried over sulphuric acid, not less than 43 per cent, of iodin. It occurs as a bright, chocolate- colored, or reddish-yellow, bulky powder, with a very slight aro- matic odor. It is practically insoluble in water and nearly insoluble in alcohol. Action and Uses : Thymol iodid, is antiseptic and is .used in place of iodoform, chiefly as a dusting-powder. Thyroideum Siccum (Thyroid. Sicc.), Dried Thyroids, U. S. P. (Glandulae Thyroideae Siccae, U. S. P. VIII, Desiccated Thyroid Glands). The thyroid glands of animals which are used for food by man, freed from fat, and cleaned, dried and powdered. Properties: Dried thyroids is a yellowish, amorphous powder, hav- ing a slight, characteristic odor, and containing the active constitu- ent of the thyroid tissue. It is partially soluble in water. The preparation should be standardized to contain about 0.2 per cent, of iodin in organic combination. Action and Uses: Dried thyroid gland ac£a_chiefly through a compound of iodin contained in TFT Thera- peutically active doses increase destructive metabolism, as indicated by loss of bocfv weight and increase flf Urine- nitrogen, carbon dioxid production and oxygen assim- ilation. The loss of weight is at first due mainly to loss of water;* later to increased catabolism of adipose tissue., although there is also an increased breaking aown tein unless the diet contains an abundance of protein. With larger, ot long-continued doses there is a very rapid action of the heart, nervousness, tremors, headache, flusmng of the sweating and mucTi more pjonounced loss of weight. "* Thyroid gland is of service in cases marked bv deficient aptina pf the gland. The most striking results are obtained in cretinism ancTmyxedema and in the condition known as cachexia ffiyreoprTvaT~due To the removal of the thyroid glandmie beneficial"effects are seen in the improved con- dition of the skin, the reestablishment of perspiration and of a normal temperature, increased diuresis and loss of weight, improvement in the mental condition and, in young subjects, renewed growth, especially gi the long bones and pf the hair. In many cases after the more severe symptoms of hypothyroidism have disappeared, remarkably small doses suffice to keep the patient in an almost normal state; it is often necessary, however, to continue such small doses indefinitely. Thyroid is efficacious in many cases of milder degrees of hypothyroidism; but these are often difficult to diagnose. In some forms of goiter the function of the thyroid i? defective and*tIm~admims”tration of the dried gland is indi-_ cated; but in most cases of goiter its use is condemned. Thyroid has'been much used in obesity, but it is indicated in only a small proportion of cases and it should be given in moderate amounts so as not to do harm by the destruc- tion of proteins. The effects, which are marked at first, are not permanent. USEFUL DRUGS 149 Dosage: 0.06 Gm. or lgniin should be given as the initial dose three times daily, increasing gradually until improvement is“noted; its administration s I louTd' b e 'dTscom tinued if toxic symptoms appear. The patient shouTcT'be ' careful of exertion and should take sufficient protein in his diet to compensate for increased loss 67 nitrogen from the action of the drug. The remedy may be given in powder, cachets or capsules. A dose of 0.6 Gm. or 10 grains a day should rarely be exceeded. For accurate dosage thyroxin, an active compound obtained from thyroid, is often preferable (see N. N. R.). Tragacantha (Trag.), Tragacanth, U. S. P. (Gum Traga- canth).—A gummy exudation from Astragalus gummifer. Action and Uses: Tragacanth swells on addition of water and gradually forms a cloudy gelatinous mass. On further addition of water it forms a mucilage which is occasionally used in pharmacy in the making of emulsions and is widely used as a basis for a greaseless catheter lubricant and an application for chapped skin. Trinitrophenol (Trinitrophen.), Trinitrophenol, U. S. P. (Acidum Picricum, Picric Acid). — CeH20H(N02)a (1:2:4: 6). An acid obtained by ’nitrating phenol. Properties: Trinitrophenol occurs as pale, yellow prisms, odorless and having a very bitter taste. It is explosive when heated rapidly or when subject to percussion. It is soluble in cold water (1:78), imparting a yellow color to a very large volume, more soluble in water at higher temperatures (1:25 at 80 C.), easily soluble in alco- hol (1: 12). Caution : For safety in transportation it is usually mixed with 20 per cent, of water. Action and Uses: Picric acid is an irritant, astringent, and antiseptic to the skin and mucous membranes. It is used mainly for the treatment of superficial burns, but its application produces severe thougfi temporary smarting. Its use on large areas also presents some danger of sys- temic poisoning. It has been largely"*displaced by the paraffin treatment. Taken internally, it may produce nau- sea, vomiting and diarrhea! The urine is colored recTTfr" yell'ow* and may show signs of nephritis. The skin and mucous membranes may be stained yellow and thus jaun- dice may be simulated. Red blood cells are partly dissolved and the white cells are increased in number. Dosage: The internal dose is stated as from 0.03 to 0.1 Gm. (V2 to W2 grains). For use on burns, cloths moistened with the saturated watery solution are applied to the properly cleansed burned area. Over this is placed a pad of dry absorbent cotton which is fastened by a light bandage. The dressing rapidly dries and may be left in place for several days. 150 USEFUL DRUGS Tuberculinum, Tuberculin, N. N. R.—This represents the products of growth of the tubercle bacillus. Properties: Tuberculin is marketed in a variety of forms, either as a filtered extract of the bacilli or as the pulverized insoluble sub- stance of the dead bacilli themselves. In the latter or emulsified form tuberculin is known as tubercle vaccine, and it is closely related to bacterial vaccines mentioned under Vaccina. Action and Uses: Tuberculin is used principally as a diagnostic agent and the characteristic properties of the traae product to be used should be studied closely before it is employed. VACCINA, BACTERIAL VACCINES, N. N. R.—Bacterial vaccines are suspensions of the killed bacteria in physiologic solution of sodium chlorid. Cresol is usually added as a preservative. Bacterial vaccines are used to secure the production of an active immunity. Great care and skill are necessary for their proper use, and no definite statements as to dosage, etc., can be given. The use of most of these vaccines is in the experimental stage. They are often prepared from cultures obtained from the individual to be treated (autogenous vaccines) ; these usually give the best results, ancTsome authors main- tain that “stock” vaccines should be used only when it is impracticable to secure the autogenous agent. (See also Sera et Vaccina.) •£)<>*# uW «A. Vaccinum Rabies, Antirabic Vaccine, N. N. R.—The virus of rabies rendered practically nonvirulent for man by pas- sage through a long series of _ rabbits-" and treated in various ways to decrease the infectivity still further, or by the addition of chemicals to destroy entirely. Properties: The method of preparing the vaccine commonly used s that of Pasteur, with modifications. Essentially it is this: The spinal cords of the infeetpd rabbits are dried over sodium hydroxid at constant temperature for from one to eight days, then cut in 0.5 centimeter pieces and preserved in glycerin. For use, the cord is emulsified in physiologic solution of sodium chlorid. Action and Uses : After the bite of a rabid animal, treat- ment with antirabic vaccine (if not too long delayed) usually establishes immunity before the incubation period of the disease is completed, thus preventing rabies. The treatment fails occasionally and in a small percentage of cases it is followed by paralysis, which is usually transient but may be fatal. Dosage: The dosage varies with the method..pf jinn. Each dose is supplied in a single container and is (ftiected into the subcutaneous tissue, usually of. the anterior abdominal wall. In mild bites of the extremities or through ffie clothing, a series'"of fourteen injections on successive days js usually given, while in severe wound? of the face or trunk, the series consists of twenty-one daily injections. USEFUL DRUGS 151 / Vaccinum Staphylococcicum (Vac. Staphylococ.), Staphylo- coccus Vaccine, N. N. R.—A vaccine made from the Staphylococcus pyogenes aureus, from the Staphylococcus pyogenes albus, or from the Staphylococcus pyogenes citreus, or from all three. Action and Uses: Staphylococcus vaccine is thought to be useful in carbunculosis. furunculosis, sycosis, and certain cases of acne. An autogenous vaccine should be used by preferenceT" The forms oFqcue most likely to respond are characterized by pustules, with considerable induration, situated on the face, chest and back. When the lesions are superficiarand indolent, the acne vaccines give good results, and when there is a mixture of active and indolent lesions, a mixture of the two vaccines is indicated. Vaccinum Typhosum (Vac. Typhos.), Typhoid Vaccine, N. N. R.—A vaccine made from Bacillus typhosus. In some cases Bacillus paratyphosus A and Bacillus para- typhosus B are also used. Action and Uses : Typhoid vaccine is of recognized utility in the prevention of typhoid fever. The immunity probably persists in the majority of cases from t\vo to four years or longer. The vaccine may be of service also In the treatment of In such cases an autogenous to be Referred, The same is true in the bacterial complications and sequelae of typhoid fever, especially those that appear during convalescence or are prolonged into that stage. The use of vaccine in the treatment of typhoid fever has given very inconclusive results. No positive evidence of harm resulting from its use has been recorded. Many clinicians, however, believe that the giving of an addi- tional amount of the toxin of the disease may turn the balance against recovery in states characterized by marked toxemia. Dosage: As a preventive, typhoid vaccine should be administered ojilv to healthy persons. The skin should be sterilized with, iodin and an initial dose of 500,000,000 bac- teria injected aseptically. 'inis injection should be fol- lowed in from seven to ten days by a second dose of 1,000,000,000 bacteria; a thhal injection of the same size is prvpri gpypn to ten days affpr the second. Valeriana (Valer.), Valerian, U. S. P.—The dried rhizome and roots of Valeriana officinalis. Action and Uses: Valerian is thought to be an antispas- modic and nerve sedative, but its influence is largely psychic, and in the ammoniated tincture the stimulating effects of the aromatic spirit of ammonia no doubt predominate. 152 USEFUL DRUGS Tinctura Valerianae Ammoniata (Tr. Valer. Ammon.), Ammoniated Tincture of Valerian, U. S. P.—One hun- dred Cc. represent the soluble constituents of 20 Gm. of valerian in aromatic spirit of ammonia. Virus Vaccinicum (Virus Vaccin.), Vaccine Virus, U. S. P. (Glycerinated Vaccine Virus, Smallpox Vaccine, Jen- nerian Vaccine).—The material obtained from skin eruptions of calves having vaccinia. The material is removed and prepared under aseptic conditions. The “pulp” is ground and mixed with varying percentages of glycerin. It is marketed in capillary tubes. Only such vaccipe may be sold as has been prepared in establish- ments licensed by the Secretary of the Treasury of the United States. Dosage: 2 Cc. or 30 minims. Action and Uses: Vaccine virus is used as a prophylactic against smallpox. Zinci Acetas (Zinc. Acet.), Zinc Acetate, U. S. P.—Corre- sponds to not less than 99.5 per cent, of Zn(C2H302)!+ H20. Properties: Zinc acetate occurs as soft, white, pearly crystals, hav- ing a faintly acetous odor, and in dilute solutions an astringent, metallic taste. It is freely soluble in water (1:2.3) and soluble in alcohol (1:30). Incompatibilities : Zinc acetate is incompatible with alkali carbonates or sodium borate. Action and Uses: Zinc acetate is astringent and anti; septic. It is used principally in the form of solution as an external application, for injections and collyria; rarely used internally. It may be used in collyria in the proportion of from 0.1 to 0.5 per cent, or from V2 to 2 grains per ounce. Zinci Chloridum (Zinc. Chlor.), Zinc Chlorid, U. S. P.— Contains not less than 95 per cent, of ZnCh. Dosage: 0.125 Gm. or 2 grains. Properties: Zinc chlorid occurs as a white or nearly white granu- lar powder or in porcelain-like masses, irregular or molded into pen- cils, odorless, and of such intensely caustic properties as to make tasting dangerous, unless freely diluted with water. The dilute solution has an astringent metallic taste. It is very soluble in water (1:0.25) and in alcohol (1:1.3). Incompatibilities: Zinc chlorid is incompatible with sodium borate and with alkali carbonates. Action and Uses : Zinc chlorid is used as an antiseptic, astringent and escharotic. USEFUL DRUGS 153 Liquor Zinci Chloridi (Liq. Zinc. Chlor.), Solution of Zinc Chlorid, U. S. P.—An aqueous solution containing about 50 per cent., by weight, of zinc chlorid made by dissolving granulated zinc in hydrochloric acid. Zinci Oxidum (Zinc. Oxid.), Zinc Oxid, U. S. P.—Contains not less than 99 per cent, of ZnO. Properties: Zinc oxid occurs as a very fine, amorphous, white or yellowish-white powder, free from gritty particles, without odor or taste. It is practically insoluble in water and in alcohol. Incompatibilities : Zinc oxid is incompatible with acids. Action and Uses: Zinc oxid is slightly antiseptic and and is widely us (Tel either ajone or in combination with boric acid, bismuth subnitrate and starch as a dusting powder and as a sedative in ointment, for a variety of skin .diseases. Tt is now rarely used internally. Unguentum Zinci Oxidi (Ung. Zinc. Ox.), Ointment of Zinc Oxid, U. S. P. (Zinc Ointment).—A mixture of zinc oxid (20 Gm.) with benzoinated lard (80 Gm.). Zinci Stearas (Zinc. Stear.), Zinc Stearate, U. S. P.—A com- pound of zinc with stearic acid and small but variable proportions of palmitic acid. Contains about 15 per cent, of ZnO. Properties: Zinc stearate occurs as a very fine, white powder, tasteless, and having a very faint odor, resembling that of fat. It is practically insoluble in water and alcohol. Action and Uses : Zinc stearate is used as a dusting powder, but appears to have little or no advantage over zinc oxid. Care should be exercised against the accidental aspiration by infants and children of zinc stearate dusting powders. Zinci Sulphas (Zinc. Sulph.), Zinc Sulphate, U. S. P.—Corre- sponds to not less than 99.5 per cent, of ZnS04+7H20. Properties: Zinc sulphate occurs as colorless, transparent, rhombic crystals, or granular crystalline powder, without odor, and having an astringent, metallic taste. It is very soluble in water (1:0.6), but practically insoluble in alcohol. Incompatibilities : Alkali carbonates, sodium borate, tannin and vegetable astringents. Action and Uses: Zinc sulphate is astringent, styptic and gpietic. It is much used in collyria in conjunctivitis and is especially effective in that form caused by Morax- Axenfeld bacillus. It is employed as an injection in the treatment of the chronic stages of gonorrhea. Dosage: As an emetic, 1 Gm. or 15 grains. 154 USEFUL DRUGS In collyria it may be used in the strength of from 0.1 to 1.0 per cent, or from 1 to 5 grains per ounce. As an injec- tion in gonorrhea, solutions varying in strength from 0.5 to 4 percent. ~~fnay be used. Zingiber (Zingib.), Ginger, U. S. P.—The dried rhizome of Zingiber officinale. Occasionally administered in the form of powder. Action and Uses : Ginger is aromatic, stimulant and a stomachic tonic. It is a serviceable carminative in colic. Dosage: 1 Gm. or 15 grains. Tinctura Zingiberis (Tr. Zingib.), Tincture of Ginger. U. S. P. (Tincture of Jamaica Ginger).—One hundred Cc. represent the soluble constituents of 20 Gm. ginger in alcohol. Dosage: 2 Cc. or 30 minims. PHARMACEUTIC PREPARATIONS The following are descriptions of the more commonly used pharmaceutic preparations of drugs : AQUAE AROMATICAE, AROMATIC WATERS. —The official aromatic waters are aqueous solutions of volatile substances, usually volatile oils. They are used as vehicles for the more active, water-soluble drugs. CACHETAE, CACHETS.—Cachets, or wafers, are made by pressing a mixture of flour, or starch and water between hot iron plates, and are used much in the same way as capsules for enclosing dry and powdered drugs, but are of greater capacity, accommodating from 0.5 to 1.0 Gm. of a powder. They have the advantage over capsules of being more readily dissolved and, despite their comparatively large size, are easily swallowed if previously dipped into water or if floated on a tablespoonful of water. CAPSULAE, CAPSULES.—Capsules, either hard or soft, are made of gelatin molded over a suitable form. Soft capsules containing an admixture of glycerin to the gelatin, are used extensively for oils and oleoresins or solutions of active drugs in oils. Such capsules, containing as much as 5 Gm. of oil can be readily swallowed by most persons. Hard gelatin capsules may be used for dispensing of pow- ders, masses, or liquids. They range in size from 00 to 5. Size 00 has capacity for about 0.5 Gm. of quinin sulphate or similar light substance, while it would hold 1.3 Gm. of as heavy a substance as bismuth subnitrate. Size 5 will hold about 0.05 Gm. of quinin sulphate. Aqueous or hydro- alcoholic liquids, such as fluidextract of cascara sagrada, may be filled into capsules by the patient just before taking the dose; owing to solvent action on gelatin, such cap- sules should not be prescribed for dispensing by the druggist. CATAPLASMATA, POULTICES.—Poultices are soft solid preparations used for the purpose of applying heat and moisture to localized areas of the body. This application of heat induces a superficial hyperemia which is believed to influence the circulation of the underlying parts. The poultices may also be made the means of applying counter- irritant drugs. A long-continued application tends to cause relaxation of the skin and to render it flabby. CERATA, CERATES.— Cerates are solid ointment-like preparations containing sufficient wax to prevent them from melting at the temperature of the body. CHARTAE, PAPERS. — Medicated papers are pieces of absorbent paper that have been treated with medicinal substances or suitably sized paper coated with a layer of the medicinal substance. 156 USEFUL DRUGS COLLODIA, COLLODIONS.—Collodions are solutions of pyroxylin (guncotton) in mixtures of ether and alcohol, or of acetone, and are intended for external application. The following preparations are now among those included in the Pharmacopeia: CONFECTIONES, CONFECTIONS. — Confections, con- serves or electuaries were formerly used extensively, and usually occur as soft, pasty solids consisting of active drugs mixed with sugar or honey. DECOCTA, DECOCTIONS.—Decoctions are aqueous prep- arations made by boiling vegetable substances in water and then straining. They are generally made 5 per cent, in strength. ELIXIRES, ELIXIRS.—Elixirs are sweetened, aromatic, alcoholic liquids similar to cordials and having probably the same origin. EMPLASTRA, PLASTERS.—Plasters are solid preparations for external use and serve either as simple adhesives or as counterirritants. The official plasters are usually replaced by the commercial plasters made on a large scale by machinery, which have as a base a mixture of rubber, with solvents or diluents. EMULSA, EMULSIONES, EMULSIONS.—Emulsions are aqueous preparations in which oils or resins are suspended by means of mucilaginous substances or other colloids. ENEMATA, CLYSTERS.—An enema, or clyster, is a liquid preparation intended to be injected into the rectum. EXTRACTA, EXTRACTS.—Extracts are soft, solid or powdered preparations made by evaporating a solution of the soluble constituents of vegetable or animal drugs at a low temperature. FLUIDEXTRACTA, FLUIDEXTRACTS. — Fluidextracts are liquid preparations of such strength that each cubic centimeter represents the soluble constituents of 1 Gm. of the crude drug. GLYCERITA, GLYCERITES.—Glycerites are solutions of medicinal substances in glycerin. INFUSA, INFUSIONS.—Infusions are aqueous preparations made by pouring hot or cold water over a vegetable drug and allowing the mixture to stand for a definite period and then straining. They are usually made 5 per cent, in strength. LINIMENTA, LINIMENTS.—Liniments are oily, soapy, or alcoholic liquid preparations intended for external appli- cation. Aqueous liquid preparations intended for local use are generally termed washes or lotions (Lotiones). USEFUL DRUGS 157 LIQUORES, SOLUTIONS.—Pharmaceutically, solutions are aqueous liquid preparations in which one or more generally nonvolatile substances are completely dissolved. MASSAE, MASSES.—Masses are soft solid preparations of such consistency that they can be made into pills readily. MELLITA, HONEYS.—Honeys are sweet liquids having honey as a base; they formerly were much used as vehicles. MISTURAE, MIXTURES.—Mixtures are liquid prepara- tions containing insoluble or partly soluble medicinal solids suspended in them. MUCILAGINES, MUCILAGES.—Mucilages are aqueous solutions of gums or the mucilaginous principles of vege- table substances. OLEATA, OLEATES.—The official oleates are combinations of alkalies or metallic oxids with oleic acid. OLEA PINGUA, FIXED OILS.—Fixed oils and fats are neutral esters of vegetable or animal derivation, being com- pounds of acids (chiefly oleic, palmitic and stearic) with glycerol. OLEA VOLATILIA, VOLATILE OR ESSENTIAL OILS. —Volatile or essential oils are liquids derived'from plants and may contain or consist of. neutral principles, aldehyds, ketones, phenols, esters or compound ethers. OLEORESINAE, OLEORESINS. — Oleoresins are thick liquid preparations consisting of volatile oils and resins extracted from vegetable substances by ether, acetone or alcohol. PILULAE, PILLS.—Globular, oval or flattened bodies, of such size and consistency that they can be swallowed ,vhole. PULVERES, POWDERS.—Pharmaceutically, powders are combinations of several substances in powdered form or powdered vegetable drugs. The term “powders” is also applied to single dose quantities of a drug or mixture of drugs in powdered form wrapped separately in “powder papers” (chartulae). RESINAE, RESINS.—Resins are usually made by distilling the volatile oil from natural oleoresins or by precipitating resins from alcoholic solutions by the addition of water. SALES EFFERVESCENTES, EFFERVESCENT SALTS. —Effervescent salts are mixtures of soluble salts with sodium bicarbonate and citric or tartaric acid, or a mixture of the two acids, designed to yield effervescent drafts when added to water. SPIRITUS, SPIRITS.—Spirits are alcoholic solutions of volatile substances; either gases, liquids or solids. 158 USEFUL DRUGS SUPPOSITORIA, SUPPOSITORIES. —Suppositories are solid bodies intended to be introduced into the several natural orifices of the body for the purpose of producing systemic or local effects. Suppositories are usually made with oil of theobroma as a base. Rectal suppositories should be cone-shaped and should weigh about 2 Gm. or 30 grains. SYRUPI, SYRUPS.—Syrups are strong solutions of sugar and water with or without the addition of active medica- ments. TABELLAE, TABLET-TRITURATES, COMPRESSED TABLETS.—Tablet-triturates are small disks made by diluting powdered medicaments with powdered sugar of milk or with: powdered sugar, moistening the powder with sufficient alcohol to make a paste, and pressing into suitable molds. Compressed tablets are medicinal substances oi mixtures of substances compressed to the form of disks. TINCTURAE, TINCTURES.—Tinctures, with a few excep- tions, are alcoholic or hydro-alcoholic extractive prepara- tions of vegetable drugs; the tinctures of potent drugs represent 10 Gm. of drug in 100 Cc. of the preparation, with the exception of tincture of iodin, which contains 7 Gm. of iodin in 100 Cc., while tinctures of less potent drugs vary in strength, but represent usually 20 Gm. TRITURATIONES, TRITURATIONS.—Pharmacopeial trit- urations are active remedies diluted usually with 10 parts of sugar of milk. TROCHISCI, TROCHES.—Troches, or lozenges, are flat solid bodies intended to be dissolved in the mouth for their local effect on the mucous membrane of the mouth and the throat. UNGUENTA, OINTMENTS.—Ointments are soft, fatty solids of such consistency that they are readily spread at ordinary temperatures. When intended for systemic effect they are applied by inunction; ordinarily they are used as simple protectives. TABLE SHOWING THE RECORDED SOLUBILITY OF SUBSTANCES INCLUDED IN THE LIST OF USEFUL DRUGS Abbreviations and signs used: dec. = decomposed; ins. = insoluble; 00 = nearly insolu- ble; 0 = slightly soluble; sol. = soluble; part. s. = partly soluble; v. s. = very soluble; misc. = miscible in all propor- tions ; = unrecorded or uncertain. The solubility values are for distilled water at approxi- mately 25 C. and for the official U. S. P. alcohol at the same temperature and indicate the number of parts by measure of the solvent required to dissolve 1 part by weight of the substance. Soluble in Parts of Substance Parts of Alcohol Water at 25 C. at 25 C. Acacia U. S. P 2 ins. Acetanilidum U. S. P 190 3.4 Acetphenetidinum U. S. P 1,310 15 Acidum Aceticum U. S. P misc. misc. Acidum Acetylsalicylicum, N. N. R 100 V. s. Acidum Benzoicum U. S. P 275 2.3 Acidum Boricum U. S. P 18 18 Acidum Citricum U. S. P 0.5 1.8 Acidum Hydrochloridum U. S. P misc. Acidum Hydrocyanicum Dilutum, U. S. P. misc. misc. Acidum Nitricum, U. S. P misc. — — Acidum Salicylicum, U. . S. T 460 2.7 Acidum Tannicum, U. S. P V. s. V. s. 12 Aethyl-Morphinae Hydrochloridum, U. S. P. 8 22 Alcohol, U. S. P Alumen, U. S. P 7.2 ins. Ammonii Carbonas, U. S. P 4 part. s. Ammonii Chloridum, U. S. P 2.6 100 Amylis Nitris, U. S. P ins. misc. Antimonii et Potassii Tartras, U. S. P.. . 12 ins. Antipyrina, U. S. P V. s. 1.3 Apomorphinae Hydrochloridum, U. S. P.. . 50 50 Argenti Nitras, U. S. P 0.4 30 Arseni Trioxidum, U. S. P 30-100 ins. Arsphenamina, N. N. R sol. Asafoetida, U. S. P part. s. part. s. Atropina, U. S. P Atropinae Sulphas, U. S. P 445 2 0.4 5 Balsamum Tolutanum, U. S. P ins. V. s. Barbital, N. N. R 150 8 Barbital-Sodium, N. N. R 5 Benzoinum, U. S. P ins. sol. Benzosulphinidum, U. S. P 290 31 Betanaphthol, U. S. P 1,000 0.8 Bismuthi Subcarbonas, U. S. P ins. ins. Bismuthi Subgallas, U. S. P ins. ins. Bismuthi Subnitras, U. S. P ins. ins. Butyn i v. s. 160 USEFUL DRUGS Soluble in Substance Parts of Parts of Water Alcohol Caffeina, U. S. P 46 66 Caffeinae Sodio-Benzoas, U.' S. P 1 30 Calcii Carbonas, U. S. P 0t8 ins. Calcii Chloridum, U. S. P ins. 10 Calcii Lactas, U. S. P 1.2 00 Calx, U. S. P 20 ins. Calx Chlorinata, U. S. P part. s. part. s. Camphora, U. S. P 00 V. s. Chloralum Hydratum, U. S. P 0.25 1.3 Chloramin-T, N. N. R 6 Chloroformum, U. S. P 210 misc. Chromii Trioxidum, U. S. P 0.6 dec. Chrysarobinum, U. S. P 00 385 Cinchophen, N. N. R 6,220 119 Cocaina, U. S. P 600 6.5 Cocainae Hydrochioridum, U. S. P 0.4 3.2 Codeina, U. S. P 120 2 Codeinae Phosphas, U. S. P 2.3 325 Codeinae Sulphas, U. S. P 30 1,280 Creosotum, U. S. P 00 misc. Cresol, U. S. P 50 misc. Cupri Sulphas, U. S. P 2.5 500 Dichloramin-T, N. N. R 0 Elaterinum, U. S. P ins. 325 Emetinae Hydrochioridum, U. S. P v. s. V. s. Eucalyptol, U. S. P 00 V. s. Ferri Chloridum, U. S. P 0.2 V. s. Ferri et Ammonii Citras, U. S. P V. s. ins. Ferri Phosphas, U. S. P V. s. ins. Ferri Sulphas, U. S. P 1.4 ins. Ferrum Reductum, U. S. P ins. ins. Formaldehydi, Liquor U. S. P misc. misc. Gelatinum, U. S. P swells ins. Glucosum Anhydricum V. s. 0 Glycerinum, U. S. P misc. misc. Glycerylis Nitratis, Spiritus, U. S. P ins. v. s. Guaiacol, U. S. P 53 misc. Guaiacolis Carbonas, U. S. P ins. 60 Hexamethylenamina, U. S. P 1.5 12.5 Homatropinae Hydrobromidum, U. S. P.. . 6 40 Hydrargyri Chloridum Corrosivum, U.S.P. 13.5 3.8 Hydrargyri Chloridum Mite, U. S. P... ins. ins. Hydrargyri Iodidum Rubrum, U. S. P.. .. ins. ins. Hydrargyri Oxidum Flavum, U. S. P.. . . ins. ins. Hydrargyri Salicylas, U. S. P ins. ins. Hypophysis Sicca, U. S. P part. s. — Iodoformum, U. S. P 10,000 60 Iodum, U. S. P 2,950 10 Linum, U. S. P ins. 00 00 Magnesii Carbonas, U. S. P ins. ins. Magnesii Oxidum, U. S. P ins. ins. Magnesii Sulphas, U. S. P i ins. Menthol, U. S. P 00 v. s. Methylis Salicylas, U. S. P ins. misc. Morphinae Hydrochioridum. U. S. P 17.5 52 Morphinae Sulphas, U. S. P 15.5 565 USEFUL DRUGS Soluble in Parts of Parts of Substance water Alcohol Neoarsphenamina, N. N. R sol. Neocincophen 00 Nitrogen Monoxidum sol. Oleum Carophylli, U. S. P ins. V. s. Oleum Morrhuae, U. S. P ins. 0 Oleum Ricini, U. S. P ins. l Oleum Santali, U. S. P ins. sol. Oleum Sinapis Volatile, U. S. P 00 misc. Oleum Theobromatis, U. S. P ins. sol. Oleum Tiglii, U. S. P ins. 00 Oxygenium, U. S. P 34 3.6 Pancreatinum, U. S. P part. s. ins. Paraffinum, U. S. P ins. ins. Paraldehydum, U. S. P 8 misc. Pelletierinae Tannas, U. S. P 240 16 Pepsinum, U. S. P so ins. Petrolatum Liquidum, U. S. P ins. ins. Phenobarbital Sol. Sol. Phenol, U. S. P 15 misc. Phenolphthaleinum, U. S. P ins. 13 Phenylis Salicylas, U. S. P 6,670 6 Phosphorus, U. S. P ins. 350 Physostigminae Salicylas, U. S. P 75 16 Pilocarpinae Hydrochloridum, U. S. P 0.3 3 Pilocarpinae Nitras, U. S. P . 4 75 Pix Liquida, U. S. P part. s. misc. Plumbi Acetas, U. S. P '... 1.4 38 Potassii Acetas, U. S. P 0.5 2.9 Potassii Bicarbonas U. S. P 2.8 ins. Potassii Bromidum U. S. P 1.5 250 Potassii Carbonas U. S. P 0.9 ins. Potassii Chloras, U. S. P 11.5 ins. Potassii Citras, U. S. P 0.6 ins. Potassii et Sodii Tartras, U. S. P 0.9 ins. Potassii Hydroxidum, U. S. P 0.9 3 Potassii Iodidum, U. S. P 0.7 22 Potassii Permanganas, U. S. P 13.5 dec. Procain, N. N. R 1 30 Protargin Fortius, N. N. R 2 Protargin Mite, N. N. R 2 Quinidinal Sulphas sol. Quinina, U. S. P 1,560 0.8 Quininae Bisulphas, U. S. P 8.5 18 Quininae Hydrochloridum, U. S. P 18 0.8 Quininae Sulphas, U. S. P Quininae Tannas, U. S. P 725 107 00 3 Quininae et Ureae Hydrochloridum, U.S.P. 0.9 2.4 Resorcinol, U. S. P 0.9 0.9 Saccharum, U. S. P 0.5 170 Saccharum Lactis, U. S. P 4.9 Santoninum, U. S. P 5,300 43 Sapo, U. S. P sol. Sapo Mollis, U. S. P Scopolaminae Hydrobromidum, U. S. P.... 1.5 20 Sodii Benzoas, U. S. P 1.8 61 Sodii Bicarbonas. U. S. P 10 Sodii Biphosphas, N. N. R V. s. Sodii Bromidum, U. S. P 1 16 Sodii Cacodylas, U. S. P 0.5 2 5 Sodii Carbonas Monohydratus, U. S. P.. . 3 ins. 162 USEFUL DRUGS Soluble in Parts ol Substance Parts of Cold Cold Watei Alcohol Sodii Chloridum, U. S. P 2.8 ins. Sodii Hydroxidum, U. S. P 0.9 v. s. Sodii Iodidum, U. S. P 0.5 3 Sodii Nitris, U. S. P 1.5 ins. Sodii Phosphas, U. S. P 5.5 ins. Sodii Salicylas, U. S. P 0.9 9.2 Sodii Sulphas, U. S. P 2 ins. Sodii Thiosulphas, U. S. P 0.5 ins. Strophanthinum, U. S. P v. s. v. s. Strychninae Nitras, U. S. P 42 150 Strychninae Sulphas, U. S. P 32 81 Sulphonethylmethanum, U. S. P 200 v. s. Sulphonmethanum, U. S. P 365 60 Sulphur, U. S. P ins. ins. Terebinthina, N. F ins. 3 Terpini Hydras, U. S. P 200 13 Theobromina, N. N. R ins. 100 Theobrominae Sodio-Salicylas, U. S. P 1 Theophyllina, U. S. P 100 so’ Thymol, U. S. P 1,010 1 Thymolis Iodidum, U. S. P ins. ins. Thyroideum Siccum, U. S. P part. s. Trinitrophenol, U. S. P 78 12 Zinci Acetas, U. S. P 2.3 30 Zinci Chloridum, U. S. P 0.25 1.3 Zinci Oxidum, U. S. P ins. ins. Zinci Stearas, U. S. P ins. ins. Zinci Sulphas, U. S. P 0.6 ins. (The following is taken with some abridgment from “A Manual of Pharmacology,” second edition, by Torald Soll- mann, with the consent of the author.) WEIGHTS AND MEASURES The Metric System.—This is based on the decimal system, and has for the unit of the measure of length the meter (M.). This was intended to be a natural unit, viz., the ten-millionth part of the distance from the pole to the equator of the earth at a particular meridian. Subsequent measurements have given a slightly different value to this distance. The meter is therefore an arbitrary standard—the length of a platinum bar, the original of which is preserved in Paris. The meter is divided into 10, 100 and 1,000 parts, called, respectively, decimeter (dm.), centimeter (cm.), and milli- meter (mm.). The thousandth part of a millimeter is a micron (m). The contents of a cube whose edges measure a decimeter, or 10 cm., form the unit of capacity, the liter (L). The thousandth part of this is a cubic centimeter (c.cm., or, briefly, Cc.; also termed a “milliliter” or “mil.”). The unit of weight is given by the weight of a liter of distilled water at 4° C. in vacuo: this is the kilogram (Kg.). A thousandth part of this is a gram (Gm.). A quantity ten times the unit is expressed by prefixing the Greek numeral Deca; one hun- dred times, Hecto; one thousand times, Kilo. The tenth part of the unit is expressed by prefixing the Latin numeral deci; one-hundredth, centi; one-thousandth, milli. Thus : 1,000 Gm. = Kilogram (Kg.)1 IOC Gm. = Hectogram (Hg.) 10 • Gm. = Decagram (Dg.) 1 Gm. = Gram (Gm.) 0.1 Gm. = decigram (dg.) 0.01 Gm. = centigram (eg.) 0.001 Gm. = milligram (mg.) [In “Useful Drugs” only Kilogram (Kg.) Gram (Gm.) and Milligram (Mg.) are employed.] In quantities including several denominations, only one unit is used: thus, 1.234 Kg. would be read as 1,234 Gm.; 0.0002 Gm. as 2 mg., etc. The quantities are always denoted by arabic figures placed before the appellation. Fractional parts are always converted into decimal fractions. In continental Europe, the liquid measure is very little used in pharmacy, liquids being usually weighed. 1. Some authors begin all the abbreviations with capitals; others employ capitals for the units, gram, liter and meter, and their multiples; and small letters for fractions (as in the above lists). The latter plan has some advantages. 164 USEFUL DRUGS Common Systems of Weights and Measures.2—The denomi- nations are the following: apothecaries’ OR TROY WEIGHT Grain (gr.) [Scruple O) =20 gr.] Dram3 (-3) [=3 3] = 60 gr. Troy ounce (5) = 8 3 = 480 gr. [Troy pound = 12 3 = 5,760 gr.] (used in prescriptions) (3 j of water under standard conditions4 measures 504.83 minims.) AVOIRDUPOIS OR IMPERIAL WEIGHT (a system used in commerce) Grain = same as Troy grain Ounce (oz.) = 437)4 grains Pound (lb.) = 16 oz. = 7,000 grains Ton = 2,000 lb. UNITED STATES APOTHECARIES OR WINE MEASURE (used in united states for both prescription and commercial purposes) Minim (ig or min.) (approximately equal to 1 drop or to 1 grain of water — more exactly, 0.95 grain). Fluidram (f!3) - = 60 til Fluidounce (fl-5) = 8 fl3 = 480 111 (A3 j of water at 4 C. weighs 456% grains) Pint (pt., or Octarius, O) = 16 AS = 7,680 til Quart (qt.) = 2 pts. = 32 flj Gallon (gal., or Conguis, C) = 8 0 = 128 flj = 61,440 ig i A gallon holds 231 cubic inches Another system of liquid measure is in use in Great Britain, and must not be confused with the American system. It is the imperial measure. In writing the apothecaries’ measure in prescriptions, the figures are written in the roman system and placed after the appellation. Thus, gr. xx, not 20 gr. The ones are always dotted, and the last one is formed like a j: thus 3 iij, 3 vj, etc. The fl. before the sign is often omitted with liquids. Frac- tions are written as common fractions: gr. Mo, not gr. 0.1. Popular Measures.—These are formed of utensils commonly found in the household, and are, of course, inexact. They should be displaced by graduated medicine glasses, which can be obtained cheaply. Spoons are supposed to be filled so that the fluid stands level with the rim. The usually accepted equivalents of these measures are: 2. Those in square brackets are practically obsolete. 3. Also spelled drachm. 4. At 4° C. and in vacuo. USEFUL DRUGS 165 1 drop (gtt.) = 1 minim® = 0.05 c.c. 1 teaspoon = 1 fl36 = 4 c.c.7 1 dessertspoon = 2 fl3 =10 c.c. 1 tablespoon = 4 fi3 (J4 3) = 15 c.c. 1 wineglass = 2 fl3 =50 c.c. 1 teacup = 4 fl§ = 125 c.c. 1 tumbler = 8 fi3 = 200 c.c. 1 knifepointful (tableknife)= 15 to 30 gr. = 1.0 to 2.0 Gm. Equivalents of Metric and Common Systems.—Doses and formulas may be calculated from one system into the other. For this, it is only necessary to remember that 1 Gm. —15.4 grains. However, this always entails the possibility of some error in reckoning, which may have serious consequences. The student is therefore advised to learn the dosage in both systems, and to construct prescriptions directly in whichever system is chosen. If a transposition must be made, the fol- lowing approximate equivalents (which should be thoroughly memorized and practiced) are sufficiently exact for prescrip- tion purposes, and being simpler, they are less apt to lead to arithmetical errors than the exact equivalents. 1 Gm. ) = 1 c.c. j 15.5 grains or minims APPROXIMATE EQUIVALENTS 1 grain or minim =r 0.065 Gm. or c.c. 1 dram = 4.0 (—) or c.c. 1 ounce = 30.0 (—) or c.c. 1 pint = 0.5 Liter (—) 1 milligram = Yq4 grain 1 Liter = 1 quart (+) 1 Kilogram = 2.2 lb. Dosage Equivalents.—In memorizing “average doses” even this degree of approximation is needlessly complicated. The following table gives the most convenient figures: Above Above 1 Gm. 15 gr. 350 (12 S) 120 ( 4 3) 25 (IS) 15 (4 3) 10 ( 2Vi 3) 4 (13) 3 (45 gr.) 2 (30 gr.) 1 (15 gr.) 0.1 to 1}4 to 0.75 Gm. 12 gr. 0.750 (12 gr.) 0.500 ( 8) 0.300 , ( 5) 0.250 ( 4) 0.150 ( 2'A) 0.200 ( 3) 0.125 ( 2) 0.100 ( iyZ) 2 to %o t0 50 mg. 1 gr. 0.050 (1) 0.030 ()4) 0.015 (54) 0.010 (%) 0.008 (]/») 0.005 (%2) 0.004 (Vis) 0.003 (1/20) 0.002 (%0) Below Below 2 mg. %o gr. 0.0015 (Vio) 0.001 (%0) 0.00075 (%o) 0.0005 (%2o) 0.0004 (i/ieo) 0.0003 (1/200) 0.00025 (1/250) 0.0002 (%oo) 0.00015 (%00) EXACT EQUIVALENTS 1 m. = 39.370 in. ' = 3 ft. 3.370 in. = 1 yd. 3.370 in. 1 inch = 0.0254 M. = 2.54 cm. 1 ft. = 30.227 cm. 1 yd. — 91.440 cm. 5. The size of a drop varies according to the nature of the fluid and of the container; there may be from 50 to 150 to a fluid drachm. The International Protocol authorized a standard dropper, designed to deliver exactly 20 drops per cubic centimeter of water. 6. Really from J4 to 2 fl3. 7. As a matter of fact, the actual capacity of teaspoons averages 5 c.c., when filled level 166 USEFUL DRUGS 1 c.c. = 16.23 ttl . 1 L. = 33.815 fl3. = 2.113 pt. = 0.2642 gal. CAPACITY (UNITED STATES) 1 m. = 0.06161 c.c. 1 fl3 = 3.7 c.c. 1 flj = 29.574 c.c. 1 pt. = 0.4731 L. 1 gal. = 3.7854 L. 1 mg. = %4 gr. 1 Gm. = 15.432 gr. = 0.03527 oz. Av. = 0.03215 3 Troy 1 Kg. = 2.2046 lb. ' WEIGHT 1 gr. = 64.8 mg. = 0.0648 Gm. 1 3 = 3.888 Gm. 1 oz.Av. = 28.3495 Gm. 1 5 Troy = 31.1035 Gm. 1 lb. = 0.4536 Kg. Thermometric Equivalents—Clinical Table of Centigrade and Fahrenheit c.° F.° C.° F.° 36.0 96.80 39.0 102.20 36.2 97.16 39.1 102.38 36.3 . 97.34 39.2 102.56 36.4 97.52 39.3 102.74 36.5 97.70 39.4 102.92 36.6 97.88 39.5 103.10 36.7 98.06 39.6 103.28 36.8 98.24 39.7 103.46 36.9 98.42 39.8 103.64 37.0 98.60 39.9 103.82 37.1 98.78 40.0 104.00 37.2 98.96 40.1 104.18 37.3 99.14 40.2 104.36 37.4 99.32 40.3 104.54 37.5 99.50 40.4 104.72 37.6 99.68 40.5 104.90 37.7 99.86 40.6 105.08 37.8 100.04 40.8 105.44 37.9 100.22 41.0 105.80 38.0 100.40 41.2 106.16 38.1 100.58 41.4 106.52 38.2 100.76 41.6 106.88 38.3 100.94 41.8 107.24 38.4 101.12 42.0 107.60 38.5 101.30 42.2 107.96 38.6 101.48 42.4 108.32 38.7 101.66 42.6 108.68 38.8 101.84 42.8 109.04 38.9 102.02 43.0 109.40 Method of Converting Centigrade to Fahrenheit Multiply the centigrade reading by 9/5 (or 1.8) and add 32, which will yield the Fahrenheit equivalent. Method of Converting Fahrenheit to Centigrade Subtract 32 from the Fahrenheit reading and then multiply by 5/9, which will yield centigrade equivalent. Example: Convert — 4 F. to centigrade. — 4 • — 32 — 36 — 36 X % = — 20 centigrade THERAPEUTIC INDEX The following classification of articles included in the list of useful drugs according to their therapeutic use has been adapted from the sixth edition of a textbook on pharma- cology and therapeutics by Arthur R. Cushny. This index serves to indicate the comprehensiveness of the list and should assist in suggesting to practitioners and teachers possible additions and deletions that might be made so that the list will include all of the well-established remedies that are really of use. For ready reference the titles used are those under which the drug or preparation has been included and described in the list of useful remedies. I. Drugs Applied for Their Local Action to the Skin, Wounds or Visible Mucous Membranes Corrosives or Caustics. Acidum Acetjcum Acidum Nitricum Alumen Exsiccatum Argenti Nitras Arseni Trioxidum Chromii Trioxidum Iodum Phenol Potassii Carbonas • Potassii Hydroxidum Sodii Carbonas Sodii Hydroxidum Zinci Chloridum Disinfectants and Antiseptics. Acidum Benzoicum Acidum Boricum Acidum Salicylicum Argenti Nitras Calx Calx Chlorinata Camphora Chloramina-T Cresol Dichloramina-T Eucalyptol Formaldehydi, Liquor Hydrargyri Chloridum Corro- sivum Hydrargyri Iodidum Rubrum Hydrargyrum Ammoniatum Hydrogenii Dioxidi, Liquor Iodoformum Iodum Olea Volatilia Phenol Pix Liquida Potassii Permanganas Protargin Fortius Protargin Mite Sulphur Thymol Zinci Chloridum Local Anesthetics. Aethylis Chloridum Cocainae Hydrochloridum Menthol Phenacaina Procaina Astringents. Acidum Tannicum Alcohol Alumen Alumini Acetatis, Liquor Argenti Nitras Bismuthi Subcarbonas Bismuthi Subgallas Bismuthi Subnitras Cupri Sulphas Ferri Chloridum Ferri Sulphas Plumbi Acetas Zinci Acetas Zinci Oxidum Zinci Sulphas Styptics. Alumen Exsiccatum Ferri Chloridum To Contract Vessels and Reduce Hemorrhage and Swelling Epinephrina Protectives Amylum Bismuthi Subcarbonas Bismuthi Subnitras Magnesii Carbonas Collodion Talcum Zinci Oxidum Zinci Stearas 168 USEFUL DRUGS Emollients Adeps Adeps Lanae Olea Pingua Petrolatum Paraffinum Local Anodynes and Analgesics for Pain and Itching. Aconitum Ammoniae, Aqua Atropinae Sulphas Chloroformum Cocainae Hydrochloridum Phenol Sodii Bicarbonas II. Drugs Used for Affections of the Alimentary Tract Mouth and Throat. (See also Section 1): Demulcents. Acacia Ammonii Chloridum Glycerinum To Lessen Salivation. Atropina Flavoring Substances. Acidum Citricum Olea Volatilia Saccharum Syrupus Pruni Virginianae Syrupus Tolutanus Stomach: Digestives. Acidum Hydrochoricum Pepsinum Emetics. Apomorphinae Hydrochloridum Cupri Sulphas Ipecacuanha Sinapis Sodii Chloridum Zinci Sulphas To Lessen Irritation and Vomit- ing. Bismuthi Subcarbonas Bismuthi Subnitras Chloralum Hydratum Chloroformum Liquor Calcis Menthol Morphinae Sulphas Opium To Lessen Acidity, Antacids. Calcii Carbonas Calx (Liquor Calcis) Magnesii Carbonas Magnesii Oxidum Sodii Bicarbonas To Increase Secretion, Bitters. Cinchona Gentiana Nux Vomica Quininae Sulphas Strychninae Sulphas To Destroy or Expel Parasites, An- thelmintics. Aspidium Chenopodii, Oleum Chloroformum Hydrargyri Chloridum Mite Pelletierinae Tannas Santoninum Terebinthinae, Oleum Thymol Carminatives. (See also Bitters) Alcohol Camphora Capsicum Cardamomum Caryophyllus Myrrha Olea Volatilia Sinapis Zingiber Intestine: To Promote Digestion. Pancreatinum (?) To Promote Evacuation, Purga- tives. Vegetable Purgatives: Aloes Aloinum Cascara Sagrada Colocynthis Jalapa Physostigminae Salicylas Podophyllum Rheum Ricini, Oleum Senna Tiglii, Oleum Saline Purgatives. Magnessii Carbonas Magnesii Citratis, Liquor Magnesii Oxidum Magnesii Sulphas Potassii Bitartras Potassii Citras Potassii et Sodii Tartras Sodii Phosphas Sodii Sulphas Mercurial Purgatives. Hydrargyri Chloridum Mite Hydrargyrum cum Creta Massa Hydrargyri USEFUL DRUGS 169 Miscellaneous. Fel Bovis Glycerinum Petrolatum Liquidum Phenolphthaleinum Sulphur To Lessen Movement and Rela.r Spasm. Acidum Tannicum Acetannin Albutannin Argenti Nitras Atropinae Sulphas Belladonna Bismuthi Subcarbonas Bismuthi Subnitras Calx (Liquor Calcis) Gambir Morphinae Sulphas Opium Plumbi Acetas To Decrease Intestinal Flora (See also Vegetable, Saline and Mercurial Purgatives) Creosotum III. Drugs Used for Their Effects on the Circulation Heart: To Strengthen Contraction. Digitalis. Quinidinae Sulphas Strophanthinum Strophanthus To Accelerate Pulse. Atropinae Sulphas To Slow Pulse. Aconitum Digitalis Quinidinae Sulphas Strophanthinum Strophanthus Vessels. To Contract Caliber and Raise Blood Pressure. Epinephrina Ergota Hypophysis To Relax Vessels and Lower Blood Pressure. Amylis Nitris Glycerylis Nitratis, Spiritus Sodii Nitris To Arrest Internal Hemorrhage. Morphinae sulphas ) Opium ) To allay rest- lessness To Remove Fluid (Dropsy, Anasarca). [See also Diuretics (Kidney), Diaphoretics (Skin), Veget- table and Saline Purgatives (Intestine)] Digitalis Hydrargyri Chloridum Mite Strophanthinum Strophanthus IV. Drugs Used for Their Effects on the Genito-Urinary System To Increase the Flow of Urine (Diuretics). Caffeina Digitalis Hydrargyri Chloridum Mite Potassii Acetas Potassii Citras Potassii Nitras Strophanthinum Strophanthus Theobromina Theophyllina To Render the Urine Less Acid. Potassii Acetas Potassii Bicarbonas Potassii Citras Sodii Bicarbonas Sodii Carbonas To Render the Urine More Acid. Sodii Biphosphas Mineral Acids Sodii Benzoas To Render the Urine Antiseptic. Acidum Benzoicum Acidum Salicylicum Hexmethylenamina Santali Oleum Sodii Benzoas Sodii Boras Sodii Salicylas Local antiseptics, etc. To Promote Menstruation, Em- menagogues. Aloe Aloinum 170 USEFUL DRUGS V. Drugs Used for Their Effects on the Respiratory System To Stimulate the Respiratory Cen- ter. Atropinae Sulphas Caffeina Strychninae Sulphas To Reduce the Irritability of the Center in Cough. Chloroformum Codeinae Sulphas Morphinae Sulphas Opium To Increase and Liquefy the Bronchial Secretion. Ammonii Chloridum Antimonii et Potassii Tartras Apomorphinae Hydrochloridum Ipecacuanha. Potassii Iodidum Sodii Iodidum To Lessen the Secretion of the Bronchi (t) Atropinae Sulphas Terpini Hydras To Relax Bronchial Spasm in Asthma. Amylis Nitris Atropinae Sulphas Belladonna Epinephrina Glycerylis Nitratis, Spiritus Potassii Iodidum Sodii Iodidum To supplement Deficient Respira- tory Oxygenium VI. Drugs Used for Their Effects on the Central Nervous System Stimulants. (a) The spinal cord: Strychninae Sulphas (b) The brain and medulla ob- longata : Atropinae Sulphas Caffeina Depressants. (a) To paralyze sensation (gen- eral anesthetics): Aether Chloroformum (b) To induce sleep and rest (hypnotics or narcotics): Alcohol Barbital Barbital-Sodium Chloralum Hydratum Codeina Luminal Opium Paraldehydum Potassii Bromidum Scopolaminae Hydrobromidum Sodii Bromidum Sulphonethylmethanum Sulphonmethanum (c) To relieve pain (analgetics or anodynes) : Acetanilidum Acetphenetidinum Acidum Acetylsalicylicum Acidum Salicylicum Amidopyrina Antipyrina Codeina Methylis Salicylas Morphinae Sulphas Sodii Salicylas To Relieve Convulsions Aether Chloralum Hydratum Chloroformum Magnesii Sulphas Potassii Bromidi Sodii Bromidi Acetanilidum Acetphenetidinum. Acidum Acetylsalicylicum Acidum Salicylicum VII. Drugs Used to Reduce Fever Temperature Antipyrinum Guaiacol Sodii Salicylas VIII. Drugs Used for Their Effects on the Liver Cholagogues. Fel Bovis To Increase the Secretion of Bile, Acidum Salicylicum IX. Drugs Used for Their Effects on the Blood To Increase the Hemoglobin. Arseni Trioxidum Ferri Carbonas Ferri Iodidum Ferri Phosphas Solubilis Ferri et Ammonii Citras Sodii Cacodylas To Increase Alkali Reserve. Potassii Bicarbonas Potassii Citras Sodii Bicarbonas Sodii Carbonas To Increase Coagulability (f) Calcii Chloridum Calcii Lactas USEFUL DRUGS 171 X. Drugs Used Against Specified Diseases Amebic Dysentery. Emetinae Hydrochloridum Emetinae Bismutho-Iodidum Ipecacuanha Cerebrospinal Meningitis. Serum Antimeningococcus Diphtheria. Mistura Toxici Diphtheritici et Antitoxici Diphtheritici Gout. Cinchophen Colchici Semen Neochin chophen Malaria. Arseni Trioxidum Quinina Myxedema and Some Other Thy- roid Diseases. Glandulae Thyroideae Siccae Potassii Iodidi Sodii Iodidi Rabies. Vaccinum Rabies Rheumatic Fever. Acidum Acetylsalicylicum Acidum Salicylicum Cinchophen Methylis Salicylas Neocinchophen Sodii Salicylas Rickets. Calcii Chloridum Calcii Lactas Oleum Morrhuae Phosphorus Smallpox. Virus Vaccinicum Syphilis. Arsphenamina Hydrargyri Chloridum Corro- sivum Hydrargyri Chloridum Mite Hydrargyri Iodidum Rubrum Hydrargyri Salicylas Hydrargyrum _ N eoarsphenamina Potassii Iodidum Sodii Iodidum T etanus Serum Antitetanicum Purifica- tum Magnesii Sulphas T rypanosomiasis. Antimonii et Potassii Tartras Arsphenamina T uberculosis. Tuberculin Typhoid. Vaccinum Typhosum (See also Corrosives or Caustics; Emollients and Protective Local Anodynes and Anes- thetics) : Irritants. Aconitum Alcohol _ Ammonia Camphora Cantharis Capsicum Chloroformum Iodum Menthol Sinapis Terebinthinae Oleum Disinfectants or Irritants Used Chiefly in the Form of Oint- ments in Parasitic Skin Dis- eases. Balsamum Peruvianum Betanaphthol XI. Drugs Used for Their Effects on the Skin Camphora Chrysarobinum Hydrargyrum Iodum Pix Liquida Resorcinum Sulphur Drugs Administered Internally to Increase the Secretion of Perspiration, Diaphoretics or Sudorifics. Antimonii et Potassii Tartras Camphora Ipecacuanha Opium Pulvis Ipecacuanhae et Opii Pilocarpinae Hydrochloridum Drugs Administered Internally to Lessen Secretion of Per- spiration Atropinae Sulphas Belladonna (See also Astringents, Disinfec- tants, Caustics, Anodynes and Anesthetics): Drugs Contracting the Pupil and the Ciliary Muscle, Myotics. Physostigminae Salicylas Pilocarpinae Hydrochloridum XII. Drugs Used Locally for Their Effects on the Eye Drugs Dilating the Pupil and Re- laxing the Accommodation, Mydriatics. Atropinae Sulphas Cocainae .Hydrochlridum Homatropinae Hydrobromidum Scopolaminae Hydrobromidum INDEX PAGE Abbreviations 10 Acacia 11 mucilage of 11 Acetanilid 11 Acetic acid 12 Acetphenetidin 12 Acetylsalicylic acid 13 Acid, acetic 12 acetylsalicylic 13 arsenous 30 arsenous, solution of 32 benzoic 13 boric 13 carbolic (phenol) 112 carbolic, liquefied 113 “chromic” 58 citric . 14 diethyl - barbituric (bar- bital) 39 hydrochloric 14 hydrochloric, diluted 14 nitric 15 phenylcinchoninic (cincho- phen) 59 phenyl-ethyl-barbituric ... 97 picric (trinitrophenol) 149 salicylic 16 tannic 16 tannic, glycerite of 17 Aconite 17 tincture of 17 Adeps 18 benzoinatus 18 lanae hydrosus (lanolin).. 18 Adrenalin (epinephrin) 69 Aether 19 nitrosus 19 spiritus 19 Aethylmorphinae hydrochlori- dum 20 Aethylus chloridum 19 Alcohol 20 Aloes 21 extract of 22 Aloin 22 Alum 22 exsiccated 22 Aluminum acetate 22 subacetate, solution of. ... 23 Ammonia 23 aromatic spirit of 25 liniment 24 water 24 Ammoniated mercury 89 mercury, ointment of 89 Ammonio-ferric citrate 74 Ammonium carbonate 24 chlorid 25 citrate and iron.. 74 compounds 23 Amyl nitrite 25 Amylum 26 Anhydrous D-glucose 78 Antidiphtheric serum, purified. 132 Antifebrin (acetanilid) 11 PAGE Antimeningococcus serum 132 Antimony and potassium tar- trate 27 tartrated 27 Antipyrin 27 Antirabic vaccine 150 Anti tetanic serum, _ purified. ... 133 Antitoxin, diphtheria 132 diphtheria, concentrated... 132 refined and concentrated... 133 tetanus 133 Apomorphin hydrochlorid 28 Aqua 29 ammoniae 24 camphorae 50 chloroformi 57 cinnamoni 60 destillata 29 menthae piperitae 100 rosae 129 Aquae aromaticae 155 Argenti nitras 29 nitras fusus 30 Argvrol (protargin mite) 124 Aristol (thymol iodid) 147 Aromatic elixir 21 spirit of ammonia 25 syrup of rhubarb 129 tincture of rhubarb 128 waters ._ 155 Arsenic chlorid, solution of.... 32 trioxid 30 Arsenobenzol (arsphenamin) . . 32 Arsenous acid (arsenic trioxid) 30 acid, solution of 32 Arsphenamin 32 Asafetida 34 Aspidium 35 oleoresin of 35 Aspirin (acetylsalicylic acid). . 13 Atropin 36 sulphate 36 Bacterial vaccines 150 Balsam of Peru 39 of Tolu 39 Barbital 39 sodium 40 Belladonna leaves 40 extract of 40 ointment 41 plaster 41 tincture of 40 Benzoic acid 13 Benzoin 41 tincture of, compound 41 Benzoinated lard 18 Benzosulphinid (saccharin) .... 41 Betanaphthol 42 Bichlorid of mercury 83 Biniodid of mercury 86 Birch, sweet oil of 100 Bismuth subcarbonate 42 subgallate 43 subnitrate * 43 174 INDEX PAGE Bitter apple 64 Black mustard 133 Blaud’s pills 74 Bleaching powder (calx chlori- nata) 49 Blistering cerate 51 Blue gum leaves 72 mass 88 ointment 89 Borax (sodii borax) 136 Boric acid 13 acid, ointment of 14 Boroglycerin, glycerite of 14 Brown mustard 133 Cacao butter 107 Cachets 155 Caffein 45 sodio-benzoate 46 Calcined magnesia 98 Calcium carbonate, precipitated. 46 chlorid. 47 hydroxid, solution of 48 lactate 47 oxid 48 oxid, chlorinated 49 Calomel . (hydrargyri chloridum mite, mercurous chlorid mild) . .. 84 Calx . .... 48 chlorinata (bleaching pow- der) 49 Camphor 49 liniment ,• • • • SO spirit of 50 water 50 Camphorated oil 50 tincture of opium 107 Cantharides 51 cerate 51 tincture of 51 Capsicum 51 tincture of 52 Capsules 155 Carbo ligni 52 Carbolic acid (phenol) 112 acid, liquefied 113 Cardamon seed 52 tincture of 52 Carrel-Dakin solution 49 Cartagena ipecac 95 Caryophyllus 53 oil of 53 Cascara sagrada 53 sagrada, extract of 54 sagrada, fluidextract of. . . 53 sagrada, fluidextract of, aromatic 53 Cassia oil 60 Castile soap 130 soap, white 130 Castor oil 106 Cataplasmata 155 Caustic potash 121 soda 138 Cayenne pepper 51 Cera alba 54 flava 54 Cerate, cantharides 51 Cerates 155 Chalk, precipitated 46 Chalybeate pills 74 Charcoal, wood (carbo ligni)... 52 Charta sinapis 133 PAGE Chartae 155 Chaulmestrol 106 Chaulmoogra oil 105 Chenopodium 54 oil of 54 Cherry, wild 124 wild, syrup of 124 Chloral, hydrated 55 Chloramin-T 56 Chlorinated lime 49 soda 48 Chloroform 56 liniment 58 spirit of 58 water 57 Chromic anhydrid 58 Chromium trioxid 58 Chrysarobin 58 ointment 59 Cinchona 59 tincture of 59 Cinchophen (phenylcinchoninic acid) 59 Cineol 72 Cinnamon, oil of 60 saigon 59 water 60 Citric acid 14 Clove 53 oil of 53 Clysters 156 Cocain 60 hydrochlorid 60 Codein 62 phosphate 63 sulphate 63 Cod-liver oil 106 Colchicum seed 63 seed, tincture of 63 Collodion 64 flexible 64 Collodions 156 Colocynth 64 extract of 64 Common system of weights.... 164 Compound effervescing powder 121 powder of jalap 96 Compressed tablets 158 Confections 156 Copper sulphate 65 Corn-starch 26 Corrosive mercuric chlorid 83 sublimate 83 Cream of tartar 119 Creosote 64 Cresol 65 solution of, compound 65 Croton oil 107 Cupric sulphate 65 Dakin’s solution 49 Decoctions 156 Deodorized opium, tincture of 108 Dextrose, anhydrous 78 Diarsenol (arsphenamin) 32 Dichloramin-T 66 Diethyl-barbituric acid (barbi- tal) 39 Diethyl malonyl urea (barbi- tal) 39 Diethylsulphone dimethyl me- thane 144 methyl ethyl methane 144 INDEX PAGE Digitalis 67 infusion of 68 substances 66 tincture of 68 Dionin (ethylmorphin chlorid). 20 Diphtheria antitoxin, concen- trated 132 antitoxin, refined and con- centrated 132 toxin-antitoxin mixture ... 101 Dover’s powder 109 Dried thyroids 148 Effervescent potassium citrate.. 120 sodium phosphate 139 Elaterin 68 Elixir, aromatic 21 Elixirs 156 Emetin hydrochlorid 69 Emplastra 156 Emplastrum, belladonae 41 sinapis 133 Emulsions 156 Enemata 156 Epinephrin (adrenalin) 69 Epsom salt (magnesii sulphas). 98 Equivalents, Centigrade to Fahrenheit 166 dosage 165 Fahrenheit to Centigrade.. 166 metric and common 165 Ergot _ 71 fluidextract of 72 Eserin salicylate 115 Essence of peppermint 99 Essential oils 157 Ether 18 nitrous 19 nitrous, spirit of 19 Ethyl chlorid 19 Ethylmorphin hydrochlorid ... 20 Eucalyptol 72 Eucalyptus 72 oil of 72 Extract of aloes 22 of belladonna leaves 40 of cascara'sagrada 54 of colocynth 64 of nux vomica 105 of oxgall 73 of rhubarb 128 of rhubarb, powdered .... 128 Extracts 156 Fel bovis (oxgall) 72 Ferri et ammonii citras. ...... . 74 Ferric chlorid 74 chlorid, tincture of 74 citrate, soluble 74 phosphate 75 phosphate, soluble 75 Ferrous carbonate 73 carbonate, mass of 73 carbonate, pills of 74 iodid 75 iodid, syrup of 75 sulphate 75 sulphate, exsiccated 76 Ferruginous pills 74 Ferrum 76 reductum 76 Fixed oils 157 Flaxseed 96 PAGE Flies, Russian (cantharides) ... 51 Spanish (cantharides) 51 Fluidextract of cascara sa- grada 53 of cascara sagrada, aro- matic 53 of ergot ... 72 of glycyrrhiza 80 of ipecac 96 of licorice 80 of rhamnus purshiana (cas- cara) 52 of senna 131 Fluidextracts 156 Formaldehyd 76, 81 solution of 76 Formalin 76 Fowler’s solution 32 Foxglove (digitalis) 67 Gallotannic (tannic) acid 16 Gelatin 77 Gentian 78 tincture of, compound 78 Ginger 154 tincture of 154 Glandulae thyroideae siccae.... 148 Glauber’s salt (sodium sulphate) 141 Globulins, antidiphtheric 132 antitetanic 133 Glonoin 79 - spirit of 79 Glycerin 79 suppositories of 79 Glycerite of boroglycerin 14 of tannic acid 17 of tannin 17 Glycerites 156 Glycerol 79 Glyceryl trinitrate 79 trinitrate, spirit of 79 Glycyrrhiza (licorice) 80 fluidextract of 80 powder of, compound 131 Goa powder 58 Goulard’s extract 117 Gray powder 88 Green vitriol 75 Guaiacol 80 carbonate 81 Gum arabic (acacia) 11 asafetida 34 myrrh 104 tragacanth 149 Harrison narcotic law 62 Hartshorn liniment 24 Henbane (hyoscyamus) 90 Heroin (di-acetyl-morphin) .... 103 Hexamethylenamin 81 Homatropin bromid 82 hydrobromid 82 Honeys (mellita) 157 Hydrargyri chloridum corro- sivum 83 chloridum mite 84 iodidum flavum 85 iodidum rubrum 86 oxidum flavum 87 salicylas 87 Hydrargyrum 88 ammoniatum 89 cum creta 88 176 INDEX PAGE Hydrated chloral 55 Hydrochloric acid 14 acid, diluted 14 solution of arsenic (liquor acidi arsenosi) 32 Hydrogen dioxid 90 dioxid, solution of 90 peroxid 90 peroxid, solution of. 90 Hydrous wool fat (lanolin) .... 18 Hyoscin bromid 130 hydrobromid 130 Hyoscyamus 90 tincture of 90 Hypophysis, desiccated 90 solution of 91 Infusion of digitalis 68 Infusions 156 Insulin 91 Iodin 94 tincture of 95 Iodoform 93 Ipecac 95 and opium, powder of 109 Brazilian 95 cartagena 95 fluidextract of 96 Para 95 Rio 95 syrup of 96 Iron ' 76 and ammonium citrate 74 perchlorid 74 protosulphate 75 reduced 76 See also ferrous and ferric compounds Jalap 96 compound powder of 96 Jamestown weed (stramonium) 141 Jelly, petrolatum Ill Jennerian vaccine 152 Jimson weed (stramonium).... 141 Lanolin (adeps lanae hydrosus) 18 Lard 18 benzoinated 18 Laudanum 108 Lead acetate 117 subacetate, solution of’..... 117 sugar of 117 Licorice (glycyrrhiza) 80 fluidextract of 80 Russian 80 Spanish 80 Light magnesia 98 Lime 48 chlorinated 49 water 48 Liniment, ammonia 24 camphor 50 chloroform 58 soap 130 Liniments 156 Linseed 96 oil 96 oil, raw 96 Liquid opodeldoc 130 paraffin Ill petrolatum Ill PAGE Liquor acidi arsenosi 32 alumini acetatis 23 alumini subacetatis 23 calcis 48 cresolis compositus 65 formaldehydi 76 hydrogenii dioxid 90 hypophysis 91 magnesii citratis 98 plumbi subacetatis 117 potassi arsenitis 32 sodae chlorinatae 49 sodii hydroxidi 138 zinci chloridi 153 Liquores 157 Lozenges 158 Luminal 97 Lunar caustic (argenti nitras- fusus) 30 Magnesia 98 calcined 98 Magnesium carbonate 97 citrate 98 citrate, solution of 98 oxid 98 sulphate 98 Male fern (aspidium) 35 oleoresin of 35 Mandrake (podophyllum) 117 Mass, blue 88 of ferrous carbonate 73 of mercury 88 Masses 157 May apple rhizome (podophyl- lum) 117 Measures 163 Mellita 157 Mentha piperita 99 Menthol 100 Mercurial ointment 88 ointment, diluted 89 Mercuric chlorid 83 chlorid, corrosive 83 iodid, red 86 oxid, yellow 87 oxid, yellow, ointment of. . 87 salicylate 87 subsalicylate 87 Mercurous chlorid 84 chlorid, mild 84 iodid 85 iodid, yellow 85 Mercury (quicksilver) 88 ammoniated 89 ammoniated, ointment of. . . 89 benzoate of 88 bichlorid of 83 biniodid of 86 iodid of, green 85 iodid of, red 86 iodid of, yellow 85 mass of 88 perchlorid of 83 protiodid of 85 protochlorid of 84 subchlorid of 84 succinimid of 88 with chalk 88 Methyl salicylate 100 Metric system 163 Milk sugar 129 Mineral oil Ill INDEX 177 PAGE Misturae 157 Mixtures 157 Monkshood (aconite) 17 Morphin chlorid 101 hydrochlorid 101 sulphate 102 Morrhuae oleum 106 Mucilage of acacia 11 Mucilages 157 Muriatic acid 14 Mustard, black 133 brown 133 oil 134 oil, volatile 134 paper 133 plaster 133 Myrrh 104 tincture of 104 Naphthol (betanaphthol) 42 Neoarsphenamin 34 Neocinchophen 104 Neosalvarsan (neoarsphenamin) 34 Nightshade leaves, deadly (bel- ladonna leaves) 40 Nitric acid 15 Nitroglycerin 79 spirit of 79 Nitrogen monoxid 104 Nitrous ether 19 ether, spirit of 19 oxid 104 Novatophan (neocinchophen).. 104 Novocain (procain) 123 Nux vomica 105 extract of 105 extract of, powdered 105 tincture of 105 Oil, camphorated 50 castor 106 cod-liver 106 croton 107 linseed 96 of birch 100 of cassia 60 of chenopodium 54 of cinnamon 60 of clove 53 of eucalyptus 72 of mustard, volatile 134 of peppermint 99 of sandalwood 107 of santal 107 of sweet birch 100 of teaberry 100 of theobroma 107 of turpentine 145 of turpentine, rectified .. . 145 of wintergreen 100 Oils, essential 156 fixed 156 volatile 156 Ointment, belladonna 41 blue 89 chrysarobin 59 mercurial 88 mercurial, diluted 89 of ammoniated mercury. . . 89 of boric acid 14 of yellow mercuric oxid... 87 of zinc oxid . 153 petrolatum Ill Ointment—Continued. page sulphur 145 tar 117 white precipitate 89 Ointments 158 Olea pingua 157 volatilia 157 Oleates 157 Oleoresin of aspidium 35 Oleoresins 157 Oleum betulae 100 caryophylli 53 chaulmoograe 105 chenepodii 54 eucalypti 72 gaultheriae 100 lini 96 morrhuae 106 ricini 106 santali 107 sinapis volatile 134 terebinthinae 145 tiglii 107 Opium 108 and ipecac, powder of 109 powdered 108 tincture of 108 tincture of, camphorated.. 108 tincture of, deodorized.... 108 Opodeldoc, liquid 130 Oxgall (fel bovis) 72 extract of 73 Oxygen 109 Pancreatin 109 Paper, mustard 133 Papers 155 Paraffin HO liquid Ill Paraldehyd 110 Paregoric (tinctura opii cam- phorata) 108 Pelletierin tannate 110 Pepper, Cayenne 51 Peppermint 99 essence of 99 oil of 99 spirit of 99 water 100 Pepsin Ill Perchlorid of mercury 83 Peroxid of hydrogen 90 Peru, balsam of 39 Petrolatum Ill liquid Ill ointment Ill Petroleum jelly Ill Pharmaceutic preparations .... 155 Phenacetin (acetphentidin) ... 12 Phenobarbital 97 Phenol (carbolic acid) 112 liquefied 113 Phenolphthalein 113 Phenyl salicylate 113 Phenylcinchoninic acid (cin- chophen) 59 Phenyl-ethyl-barbituric acid ... 97 Phenyl-ethyl-malonyl 97 Phosphorus 114 Physostigmin salicylate 115 Picric acid (trinitrophenol).... 149 Pills 157 of ferrous carbonate 74 178 INDEX PAGE Pilocarpin chlorid 115 hydrochlorid 115 nitrate 116 Pilulae 157 Pine tar 116 Pituitary body, desiccated 90 solution of 91 Pix liquida 116 Plaster, belladonna 41 mustard 133 Plasters 156 Plumbi acetas 117 Podophyllin 117 resin of '... 117 Popular measures 164 Potash, caustic 121 Potassium acetate 118 and sodium tartrate 120 arsenite, solution of 32 bicarbonate 118 bitartrate 119 bromid 119 carbonate 120 chlorate 120 citrate 120 citrate, effervescent 120 hydrate 121 hydroxid 121 hydroxid, solution of 121 iodid 94 permanganate 122 tartrate 27 Poultices 155 Powder, compound effervescing 121 Dover’s 109 gray 88 of ipecac and opium 109 of jalap, compound 96 Seidlitz . . 121 Powdered opium 108 Powders 157 Precipitate, white 89 Precipitated calcium carbonate. 46 sulphur 145 Procain 123 Proganol (protargin fortius). . 123 Protargentum-Squibb 123 Protargin fortius 123 mild 124 mite _ 124 Protargol (protargin fortius).. 123 Protiodid of mercury 85 Protochlorid of mercury 84 Prunus virginiana 124 Pul veres 157 Pulvis effervescens compositus. 121 glycyrrhizae compositus ... 80 ipecacuanhae et opii 109 jalapae compositus 96 opii 108 Quicklime 48 Quicksilver (mercury) 88 Quinidin sulphate 125 Quinin 126 and urea hydrochlorid 127 bisulphate 126 hydrochlorid 127 sulphate 127 tannate 127 Rabies virus 150 Raw linseed oil 96 PAGE Red mercuric iodid 86 Reduced iron 76 Refined and concentrated diph- theria antitoxin 132 Resin of podophyllum 117 Resins 157 Resorcin . 128 Rhamnus purshiana 53 Rheum 128 Rhubarb 128 extract of 128 syrup of, aromatic 129 tincture of, aromatic 128 Rochelle salt 120 Rose 129 water 129 Russian flies 51 Rye, ergot of 71 Saccharin (benzosulphinid) ... 41 Saccharum 129 lactis 129 Saigon cinnamon 59 Sales effervescentes 157 Salicylic acid 16 Salol 113 Salt, Epsom 98 Glauber’s 141 Rochelle 120 Salts, effervescent 157 Salvarsan (arsphenamin) .... 32 Sandalwood oil 107 Santal, oil of 107 Santonin 129 Sapo (soap) 130 linimentum 130 mollis 130 Scopolamin hydrobromid 130 Secale cornutum 71 Seidlitz powder 121 Senna 131 fluidextract of 131 syrup of 131 Serum, antidiphtheric, purified. 132 antimeningococcus 132 antitetanic, purified 133 Serums and vaccines 132 Sesquichlorid of iron 74 Silver nitrate 29 nitrate, molded 30 protein (argyrol type) 124 protein (protargol type)... 123 Sinapis nigra 133 Smallpox vaccine 152 Soap 130 liniment 130 soft 130 Soda, caustic 138 chlorinated, solution of.... 49 Sodium acid phosphate 135 benzoate 134 bicarbonate 134 biphosphate 135 borate 136 bromid 136 cacodylate 137 carbonate, monohydrated . . 137 chlorid 137 diethyl barbiturate (barbi- tal-sodium) 40 hydrate 138 hydroxid 138 hydroxid, solution of 138 INDEX 179 Sodium—Continued page hyposulphite 141 iodid 138 nitrite 139 phosphate 139 phosphate, effervescent ... 139 pyroborate 136 salicylate 140 sulphate . 141 tartrate and potassium 120 tetraborate 136 thiosulphate 141 Solubility .. 10,159 Soluble ferric phosphate 75 Solution, Dakin’s 49 Fowler’s 32 Labarraque’s 49 of aluminum subacetate... 23 of arsenic chlorid 32 of arsenous acid... 32 of calcium hydroxid 48 of chlorinated soda 49 of cresol, compound 65 of formaldehyd 76 of hydrogen dioxid 90 of hydrogen peroxid 90 of hypophysis 91 of lead subacetate 117 of magnesium citrate.... 98 of potassium arsenite 32 of potassium hydroxid 121 of sodium hydroxid 138 of zinc chlorid 153 surgical, of chlorinated soda 49 Solutions 157 Spanish flies 51 Spirit of ammonia, aromatic.. . 25 of camphor 50 of chloroform 58 of ether 19 of glonoin 79 of glyceryl trinitrate.. 79 of nitroglycerin 79 of nitrous ether 19 of peppermint 99 Spirits 157 of turpentine 145 Spiritus (alcohol) 20 Staphylococcus vaccine 151 Starch .. 26 Stramonium 141 Strophanthin 141 Strophanthus 142 tincture of 142 Strychnin nitrate 142 sulphate 143 Subchlorid of mercury 84 Sublimed sulphur 145 Sugar 129 of lead 117 of milk 129 Sulphonal (sulphonmethane) .. 144 Sulphonethylmethane (trional). 144 Sulphonmethane 144 Sulphur 145 ointment 145 precipitated 145 sublimed 145 washed 145 Suppositories 158 of glycerin 79 Sweet birch, oil of 100 Syrup of ferrous iodid 75 of ipecac 96 Syrup—Continued. page of rhubarb, aromatic 129 of rhubarb, spiced 129 of senna 131 of Tolu 39 of wild cherry 124 Syrups 158 Tabellae 158 Table of solubility 159 Tables of conversion 163 Tablet-triturates 158 Tablets, compressed 158 Tannic acid .. . .. 16 acid, glycerite of 17 Tannin, glycerite of 17 Tar 117 ointment 117 Tartar, cream of 119 emetic 27 Teaberry, oil of 100 Terebinthina 145 Terpin hydrate 146 Tetanus antitoxin 133 antitoxin, concentrated . . 133 antitoxin, globulin, solution of 133 antitoxin, refined and con- centrated 133 Theobroma, oil of 107 Theobromin 146 sodium salicylate 146 Theophyllin 147 Therapeutic Index 167 Thermometric equivalents 166 Thymol 147 iodid (aristol) 147 Thyroids, dried 148 Tiglii oleum 107 Tincture of aconite 17 of belladonna 40 of benzoin, compound 41 of canthandes 51 of capsicum 52 of cardamom 52 of cinchona 59 of colchicum seed 63 of digitalis 68 of ferric chlorid 74 of gentian, compound 78; of ginger 154 of hyoscyamus 90< of iodin 95 of myrrh ... 104 of nux vomica 105 of opium 108 of opium, camphorized.... 108 of opium, deodorized 108 of rhubarb, aromatic 128 of strophanthus 142 of valerian, ammoniated... 152 Tinctures 158 Tolu, balsam of 39 syrup. of 39 Toxin-antitoxin mixture 101 Tragacanth 149 Tri-iodomethane ... 93 Trinitrate glyceryl, spirit of... 79 Trinitrin (glyceryltrinitrate)... 79 Trinitrophenol (picric acid) .. . 149 Trional (sulphonethylmethani- um) 144 Triturations 158 Troches 158 180 INDEX PAGE Tuberculin ISO Turpentine 145 oil of . 145 oil of, rectified 145 spirits of 145 Typhoid vaccine 151 Unguenta 158 Unguentum acid borici 14 belladonnae 41 chrysarobini 59 hydrargyri 88 hydrargyri ammoniati 89 hydrorgii dilutum 89 picis liquidae 117 sulphuris 145 zinci oxidi 153 Urea 97 hydrochlorid and urea.... 127 Vaccina 150 Vaccine, antirabic 150 jennerian 152 smallpox 152 staphylococcus 151 typhoid 151 virus 152 virus, glycerinated 152 Vaccines and serums 132 bacterial 150 Valerian 151 tincture of, ammoniated... 152 Vallet’s mass 73 Veronal (barbital) 39 sodium (barbital-sodium)... 40 PAGE Virus, rabies 150 vaccinicum 152 Vitriol, green 75 Volatile oils 157 Water 29 ammonia 24 camphor 50 chloroform 57 cinnamon 60 distilled 29 peppermint 100 rose 129 Wax, white 54 yellow 54 Weights 163 “White arsenic” 30 castile soap 130 precipitate 89 precipitate ointment 89 Wild cherry 124 cherry, syrup of 124 Wintergreen, oil of 100 Wood charcoal 52 Wool fat, hydrous 18 Yellow gentian 78 mercuric oxid 87 mercurous iodid 85 Zinc acetate 152 chlorid 152 chlorid, solution of 153 oxid .; 153 oxid, ointment of 153 stearate 153 sulphate 153 Zingiber 154