White cryst.—Sol. in water, alcohol.—Antiseptic, Astringent.—Uses: Instead of zinc sulphate in eye washes (1/2—1% solut.).

Caesium and Ammonium Bromide Merck.

White, cryst. powd.—Sol. in water.—Nerve Sedative.—Uses: Epilepsy, etc.—Dose: 15—45 grn., 1 or 2 t. daily.

Caffeine Merck.—U.S.P.—Pure.

Theine: Guaranine.—Dose: 1—5 grn.—Max. D.: 10 grn. single, 30 grn. daily.

Caffeine, Citrated, Merck.—U.S.P.

(Improperly called "Citrate of Caffeine").—50% caffeine.—White powd.; acid taste.—Dose: 2—10 grn.

Caffeine Hydrobromate Merck.—True salt.

Glass-like cryst.; reddish or greenish on exposure.—Sol. in water, with decomposition.—Uses: Chiefly as diuretic, hypodermically.—Injection: 4—10 ♏ of solut. caffeine hydrobromate 10 parts, hydrobromic-acid 1 part, distilled water 3 parts.—Caution: Keep well stoppered, in brown bottles!

Caffeine and Sodium Benzoate Merck.