Leaves of Rauwolfia vomitoria, collected in Nigeria, contained at least six alkaloids, three are indole derivatives (aricine, tetrahydroalstonine, isoreserpiline) and three are isomers of α‐oxindole type (carapanaubine, rauvoxine, rauvoxinine). Rauvoxine and rauvoxinine are new alkaloids. The leaves contained no reserpine. 1964 Royal Pharmaceutical Society of Great Britain