Epitome of the Pharmacopeia of the United States and the National Formulary / With Comments

by Albion Walter Hewlett; William August Puckner; Torald Hermann Sollmann; Martin I. Wilbert

*Zinci Stearas (Zinc. Stear.), Zinc Stearate, U.S.P.—Chiefly zinc stearate and palmitate.

Fine, bulky, white, tasteless powder, having a faint characteristic odor. Insoluble in water or alcohol.

Action and Uses: Similar to, but without special advantage over zinc oxide.

Unguentum Zinci Stearatis (Ung. Zinc. Stear.), Ointment of Zinc Stearate, N.F.—Zinc stearate (50%) in white petrolatum.

Uses: Without advantage over the oxide.

*Zinci Sulphas (Zinc. Sulph.), Zinc Sulphate, U.S.P.—ZnSO₄ + 7H₂O.

Colorless, transparent crystals or granular powder, odorless and having an astringent, metallic taste. Very soluble in water (1:0.6) and freely soluble in glycerin (1:2.5); insoluble in alcohol.

Action and Uses: Astringent, styptic and emetic. Much used in eye washes and especially effective in that form of conjunctivitis caused by the Morax-Axenfeld bacillus.

Dosage: Emetic, 1 Gm. or 15 grains (U.S.P.) in diluted solution. Locally, 0.1 to 1 per cent. in collyria; 0.5 to 4 per cent. in injections (gonorrhea).

Liquor Zinci et Alumini Compositus (Liq. Zinc. et Alumin. Co.), Compound Solution of Zinc and Aluminum, N.F.—Zinc sulphate (20%), aluminum sulphate (20%), betanaphthol (0.06%) with oil of thyme in water.