The peeled dried fruit of Citrullus colocynthis. from which the seeds should be separated and rejected in making pharmacopeial preparations.

Colocynth belongs to the class of one-time popular hydragogue cathartics whose use appears to be on the decline. It is used in making:

Extractum Colocynthidis.—Extract Of Colocynth, U. S. P.

Dosage: 0.03 Gm. Or Grain.

Extractum Colocynthidis Compositum.—Compound Extract Of Colocynth, U. S. P.

A complex mixture of extract of colocynth with aloes and other drugs.

Dosage: 0.5 gm. or 7 grains.

The latter is one of the four preparations used in making the compound cathartic pills of the U. S. P.