This section is from the book "Botanic Drugs Their Materia Medica, Pharmacology and Therapeutics", by Thomas S. Blair. Also available from Amazon: Botanic Drugs, Their Materia Medica, Pharmacology and Therapeutics.
Kousso, Brayera, Hagenia abyssinica. Official in many countries. Deleted from the ninth U. S. P.
In the British Pharmacopeia it is called Brayera anthelmintica. Used as a teniafuge. The average dose is 240 grains. This is administered in the form of an unstrained infusion. The drug is a gastrointestinal irritant, depresses the heart, is apt to be promptly vomited when administered, is unreliable unless the flowers used are quite fresh, and it is most disagreeable in action.