The hemorrhagic activity of Bothrops jararaca crude venom was reduced down to about 90% and completely
inhibited by preincubation with10mg/kg o r100mg/kg Combretum leprosum extract,respectively,while
the preincubation and thepretreatment with 30mg/kg of arjunolic acid reduced the venom hemorrhagic
activity down to about 12% and 58%,respectively.