61ANALGESIC ACTIVITY OF ETHANOLIC ROOT EXTRACT OF RIVEA HYPOCRATERIFORMIS IN MICEThe ethanolic extract of the roots of Rivea hypocrateriformis obtained by soxhlet extraction method was evaluated for analgesic action by Acetic Acid induced method. The ethanolic extract in doses of 200 and 400 mg/kg of Body weight showed 35.76 and 80.47% inhibition of writhing movements, respectively compared to that of standard Ibuprofen (100%). The ethanolic extract showed dose-dependent action in all the experimental models. The results were analyzed for statistical significance using one-way ANOVA followed by Dunnett’s test. A P value < 0.001 is considered significant.jyothi3254@gmail.comResearch422014Acetic acid induced pain,Ibuprofen,Writhing movementKuruva Jyothirmai,Alekhya M,Besta Chandrasekhar,Sareddy Harinatha Reddy,Yeggoni Sreenivasulu,Radha DSt.John’s Collge of Pharmaceutical sciences, Yerrakota, Yemminganur, Kurnool, Andhra Pradesh, India,St.John’s Collge of Pharmaceutical sciences, Yerrakota, Yemminganur, Kurnool, Andhra Pradesh, India,St.John’s Collge of Pharmaceutical sciences, Yerrakota, Yemminganur, Kurnool, Andhra Pradesh, India,St.John’s Collge of Pharmaceutical sciences, Yerrakota, Yemminganur, Kurnool, Andhra Pradesh, India,St.John’s Collge of Pharmaceutical sciences, Yerrakota, Yemminganur, Kurnool, Andhra Pradesh, India,St.John’s Collge of Pharmaceutical sciences, Yerrakota, Yemminganur, Kurnool, Andhra Pradesh, India