The flowers and tops of Brayera anthelmintica. Collected in Abyssinia.

Characters. - Flowers small, reddish brown, on hairy stalks, outer limb of calyx five-parted, the segments oblong or oblong-lanceolate, reticulated, with a fragrant odour and a disagreeable acrid taste.

Composition. - Kousso contains a volatile oil, tannic acid, gum, sugar, and a neutral crystallisable active principle, koussin, or cossin, C31H38O10. Dose. - 1/4 to 1/2 oz.

Preparation.

Infusum Cusso. - 1/4 oz. in 4 fl.oz. boiling water for one dose; to be drunk without straining.

Action And Uses

Taken in the large doses necessary, kousso is apt to cause nausea, vomiting, colic, and slight diarrhoea. Its principal action is as an anthelmintic, the tape-worms (Taenia solium, Taenia mediocanellata, and Bothryocephalus latus) being readily killed by it. It is used for this purpose only, and rarely in England. It may or may not require the assistance of a purgative to expel the dead worm. The powdered flowers, either in compressed masses or suspended in an aromatic water, are said to be much more active than the officinal infusion.