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.
Kat. A stimulant narcotic long used in Africa, and important because of its containing definite alkaloids allied in action to cocaine and caffeine. Their influence, however, is more upon the muscular than the nervous system. This agent will find its way into medical practice. See Jour, of Pharmacology and Exper. Ther., March, 1913.