several t. daily.—Injection: 1/20—1/6 grn. as 1% solut. in aqueous glycerin (40%)—Antidote: Sulphuretted hydrogen.—Incompatibles: Organic substances, phosphorus, ferrous sulphate, etc.—Caution: Vapor exceedingly irritating to the air-passages.

Acid, Phosphoric, (Ortho-), Merck.—Syrupy.—85%.

Dose: 2—6 ♏, well diluted.

do. Merck.—Diluted.—10%.

Dose: 20—60 ♏.—Incompatibles: Ferric chloride, lead acetate, etc.

Acid, Picric, Merck.—C.P., Cryst.

Picronitric, Picrinic, or Carbazotic, Acid.—Yellow cryst.; odorl.; intensely bitter.—Sol. in alcohol, ether, chloroform; sl. in water.—Antiperiodic, Antiseptic, Astringent.—Uses: Intern., in malaria, trichiniasis, etc.; extern., in crysipelas, eczema, burns, fissured nipples, etc.: 1/10% solut. for cracked nipples, 1/2—1% hydro-alcoholic solut. on compress renewed only every 3 to 7 days in burns.—Dose: 1/2—2 grn., in alcoholic solut.—Max. D.: 5 grn.—Antidote: Albumen.—Incompatibles: All oxidizable substances. Dangerously explosive with sulphur, phosphorus, etc.—Caution: Do not apply in substance or in oint., lest toxic symptoms appear!

Acid, Pyrogallic, Merck, (Pyrogallol, U.S.P.)—Resublimed.

Used only extern., in 5—10% oint.

Acid, Salicylic, Merck.—U.S.P.—C.P., Cryst.; and Natural (from Oil Wintergreen).

Dose: 10—40 grn.

Acid, Sozolic,—see Aseptol.

Acid, Sulpho-anilic, Merck.—Cryst.

White efflorescent needles.—Sol. slightly in alcohol; 112 parts water.—Anticatarrhal, Analgesic.—Uses: Intern., coryza, catarrhal laryngitis, etc.—Dose: 10—20 grn. 1 to 2 t. daily, in aqueous sol. with sodium bicarb.

Acid, Sulpho-salicylic, Merck.

White cryst.—Sol. in water, alcohol.—Uses: Delicate urine-albumin test.

Acid, Sulphuric, Aromatic—U.S.P.

20 per cent. H₂SO₄.—Best form for administration.—Dose: 10—20 min.

Acid, Sulphuric, Diluted—U.S.P.

10 per cent. H₂SO₄.—(Concentrated Sulphuric acid is not used medicinally.)—Uses: Intern., gastro-intest. disorders, phthisical sweats, exophthalmic goiter, etc.; also as solvent for quin. sulph., etc.—Dose: 15—30 min., well diluted.—Antidotes: Same as of hydrochloric acid.

Acid, Sulphurous—U.S.P.

6.4 per cent. SO₂.—Antiseptic, Antizymotic.—Dose: 15—60 min., well diluted. Extern. 10—25 per cent. solut.

Acid, Tannic, Merck.—U.S.P.—C.P., Light.

Dose: 2—20 grn.—Preparations: Styptic Collodion (20%); Glycerite (20%); Oint. (20%); Troches (1 grn.).—Incompatibles: Ferrous and ferric salts, antimony and potassium tartrate, lime water, alkaloids, albumen, gelatin, starch.

Acid, Tartaric, Merck.—U.S.P.—C.P., Cryst. or Powd.

Dose: 10—30 grn.

Acid, Trichlor-acetic, Merck.—Pure, Cryst.

Deliquescent cryst.; pungent, suffocating odor; caustic. Sol. freely in water, alcohol, ether.—Escharotic, Astringent, Hemostatic.—Uses: Venereal and cutaneous warts, papillomata, vascular nævi, pigment patches, corns, nosebleed, obstinate gleet, gonorrhea, nasopharyngeal affections and indolent ulcers.—Applied: As escharotic, pure, or in concentrated solut.; astringent and hemostatic, 1—3% solut.—Caution: Keep in glass-stoppered bottle.

Acid, Valerianic, Merck.

Oily liq., strong valerian odor; bitter, burning taste.—Sol. in water, alcohol, ether, chloroform.—Antispasmodic, Sedative.—Uses: Nervous affections, hysteria, mania, etc.—Dose: 2—10 drops, in sweetened water.

Aconite Root—U.S.P.

Preparations: Ext. (D., 1/4—1/2 grn.), F.E. (D. 1/4—1 min.); Tr. (q.v.).—See also, Aconitine.

Aconitine, Potent, Merck.—Cryst.—(Do not confound with the "Mild"!)

Alkaloid from Aconite, prepared according to process of Duquesnel.—White cryst.; feebly bitter taste.—Sol. in alcohol, ether, chloroform; insol. in water.—Antineuralgic, Diuretic, Sudorific, Anodyne.—Uses: Intern., neuralgia, acute or chronic rheumatism, gout, toothache, etc.; extern., rheumatism, other pains.—Dose: 1/640—1/200 grn. several t. daily, in pill or solut., with caution.—Max. D.: 1/64 grn. single; 1/20 grn. daily.—Extern.: 1:2000—500 parts lard.—Antidotes: Small repeated doses of stimulants; artificial respiration, atropine, digitalis, ammonia.—Caution: Never use on abraded surfaces. Danger of absorption! 10 times as toxic as the mild amorph. aconitine (below)!

Aconitine, Mild, Merck.—Amorph.—(Do not confound with the "Potent"!)

Uses: As aconitine, potent, cryst.; but only 1/10 as powerful.—Dose: 1/64—1/20 grn., very carefully increased.—Extern. 1/2—2% oint. or solut.

Aconitine Nitrate Merck.—Cryst.

Dose: Same as of aconitine, potent, cryst.

Adeps Lanæ Hydrosus Merck.—U.S.P.

Hydrous Wool-fat.—Yellowish-white, unctuous mass. Contains about 25% water. Freely takes up water and aqueous solut's.—Non-irritant, permanent emollient, and base for ointments and creams; succedaneum for lanolin in all its uses.

Adeps Lanæ Anhydricus.

(Anhydrous Wool-fat).—Contains less than 1% of water.

Adonidin Merck.

Adonin.—Yellowish-brown, very hygroscopic, odorl. powd.; intensely bitter.—Sol. in water, alcohol; insol. in ether, chloroform.—Cardiac Stimulant, mild Diuretic.—Uses: Heart diseases, especially mitral and aortic regurgitation, and relieving precordial pain and dyspnea.—Dose: 1/16—1/4 grn. 4 t. daily, in pill, or solut. in chloroform water with ammonium carbonate.—Max. D.: 1 grn.

Agaricin Merck.

White powd.; sweet, with bitter after-taste.—Sol. in alcohol; slightly in water, ether, or chloroform.—Antihidrotic.—Uses: Phthisical night-sweats, sweating from drugs.—Dose: 1/4—1 grn.

Airol.

Bismuth Oxyiodogallate, Roche.—Grayish-green, odorl., tastel. powd.—Insol. in water, alcohol, etc.—Surgical Antiseptic, like iodoform; also Antigonorrhoic and Intestinal