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

White, odorless powder, with a slightly bitter, acid taste.

Dosage: 0.3 Gm. or 5 grains (U.S.P.), in solution or capsules.

Caffeina Citrata Effervescens (Caff. Cit. Eff.), Effervescent Citrated Caffeine, U.S.P.—Contains anhydrous caffeine (about 2%), with sodium tartrate and citrate.

Dosage: 4 Gm. or 1 drachm (U.S.P.) in water.

*Caffeinae Sodio-Benzoas (Caff. Sod. Benz.), Caffeine Sodio-Benzoate, U.S.P.—Caffeine and sodium benzoate about equal parts.

White, odorless powder, with a slightly bitter taste. Freely soluble in water (1:1.1) and soluble in alcohol (1:30); partly soluble in chloroform.

Action and Uses: The form of caffeine usually employed for hypodermic administration, since it is freely soluble.

Dosage: By mouth, 0.3 Gm. or 5 grains (U.S.P.); hypodermic, 0.2 Gm. or 3 grains (U.S.P.).

Caffeinae Sodio-Salicylas (Caff. Sod. Salicyl.), Caffeine Sodio-Salicylate, N.F.—Represents equal parts of caffeine and sodium salicylate.

White, odorless powder. Freely soluble in water (1:2).