The dried panicles (chiefly of the female flowers) of

Hagenia abyssinica (Brayera anthelmintica). Abyssinia.

Characters. - In bundles, rolls, or compressed clusters consisting of panicles about 10 inches (25 centimetres) long. Flowers small, reddish-brown, on hairy stalks. Odour slight, tea-like, taste bitter and nauseous.

Composition. - Tannic acid; a bitter acrid resin and some volatile oil and kosin or koussein. Kosin is the active principle of the drug. It is a crystalline substance with an acid reaction. Koussein is a resinoid substance, and consists of impure kosin.

Preparations.

B.P.

Dose.

Infusum Cusso ..........................................................

4-8 fl. oz.

U.S.P.

Infusum Brayerae .......................................................

8 fl. oz. (236 c.c.)

Extractum " Fluidum .........................................

20 40 min. (1.25 2.50 c.c.)