(Balsam of Copaiba.)

Definition. - An oleoresin derived from one or more South American species of Copaiba.

Description and Properties. - A transparent or translucent, more or less viscid liquid of a pale-yellow to brownish-yellow color, having a peculiar aromatic odor and a bitter, acrid taste. Insoluble in water; readily soluble in absolute alcohol,ether, chloroform, carbon disulphide, benzin, and fixed and volatile oils.

Copaiba contains a volatile oil, two resins, copaibic acid (soluble in absolute alcohol and in ammonia), and a bitter principle.

Dose. - 5-30 minims (0.3-2.0 Cc.) [15 minims (1 Cc), U. S. P.] in emulsion or capsule.