Abstract: The inhibitory effects of Momordica charantia linn, Isoberlinia doka, Terminalia avicennioides, Tamarindus indica and Crotalaria retusa L aqueous leaves extracts on Opisthacanthus capensis (Black creeping scorpion) venom phospholipase A2 (PLA2 ) activity was investigated. The enzyme from O. capensis venom had a pH and temperature optima of 5 and 60˚C respectively with an activation energy of 5.20 Kcal/mol. Different concentrations (4mg, 6mg and 8mg/ml) of Isoberlinia doka and M...