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.