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

*Tinctura Colchici Seminis (Tr. Colch. Sem.), Tincture of Colchicum Seed, U.S.P. (Colchici Tinctura P.I.).—Colchicum seed (10%), yielding about 0.04 per cent. of colchicine; in alcohol and water. Absolute alcohol content about 56 per cent.

Dosage: 2 Cc. or 30 minims (U.S.P.).

Vinum Colchici Seminis (Vin. Colch. Sem.), Wine of Colchicum Seed, N.F.—Fluidextract of colchicum seed (10%), yielding about 0.04 per cent. of colchicine; in alcohol and sherry wine. Absolute alcohol content about 35 per cent.

Dosage: 2 Cc. or 30 minims (N.F.).

Colchicina (Colchicina), Colchicine, U.S.P.—An alkaloid obtained from colchicum.

Pale yellow, odorless scales or powder. Freely soluble in alcohol, soluble in water (1:22) and slightly soluble in ether (1:220).

Action and Uses: Same as those of colchicum corm.

Dosage: 0.5 mg. or 1/120 grain.

COLLODIA, COLLODIONS.—Collodions are solutions of pyroxylin or soluble gun cotton with medicinal agents, for external application. For the official collodions see under the names of the principal ingredients. In particular, for Collodium, see under Pyroxylin; for Collodium Flexible, under Oleum Ricini; and for Collodium Stypticum, under Acidum Tannicum.

*Colocynthis (Colocyn.), Colocynth, U.S.P. (Colocynth Pulp, Bitter Apple, Colocynth Apple).