Prostaglandin Synthesis Inhibitory Activity inZulu, Xhosa and Sotho Medicinal Plants
Twenty-six plants used by Zulu healers for the treatment of pain and inﬂammation were assayed for
cyclooxygenase inhibitory activity. The plant parts used by the traditional healers were dried and milled. Ethanol
and aqueous extracts of the plants were prepared and assayed. Several plant extracts exhibited high inhibitory
activity in the assay. Among these were Acacia rehmanniana, Cryptocarya latifolia, Dichrostachys cinerea,
Erythrophleum lasianthum, Euclea natalensis, Felicia muricata, Mohria caffrorum, Phygelius capensis, Sipho-
nochilus aethiopicus, Trichilia emetica and Turraea ﬂoribunda. The ethanol extracts generally showed higher
activity than the aqueous extracts.