and its saponin rich fraction on mechanical hyperalgesia in vincristine-induced neuropathic pain. Vin.: vincristine, O.s.: Ocimum sanctum, Sap.: saponin rich extract of Ocimum sanctum. Data were expressed as mean ± S.E.M., n = 6 rats per group. a = p < 0.05 Vs normal control group, b = p < 0.05 Vs vincristine control group, c = p < 0.05 Vs Ocimum sanctum 100 and 200 mg/kg group, d = p < 0.05 Vs saponin rich fraction 100 mg/kg group.