E.A. Shikanga a , G.P.P. Kamatou b , W. Chen b , S. Combrinck a , A.M. Viljoen (Elservier, 2012)
Anecdotal evidence indicates that Sceletium tortuosum has been used as a psychoactive preparation for several centuries. The psychological activity
is attributed to the production of mesembrine-type alkaloids (mesembrenol, ...