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Objective:The study was aimed at evaluating the antiulcer activity of ethanolic extract of Achyranthes aspera(EEAA) leaf.Methods:The anti-ulcer assays were performed on pylorus ligation and chronic ethanol induced ulcer model. The effects of the EEAA on gastric content volume, pH, free acidity, total acidity and ulcer index were evaluated.Results: The percentage of ulcer protection (59.55% and35.58%) was significantly (P < 0.001) higher in the groups treated with the high dose ofEEAA(600 mg/kg), it also reduced the volume of gastric juice and total acidity whereas, gastric pH was increased significantly.Conclusions: The results of this study show significant gastroprotective activity ofEEAA may be due to presence of phyto-constituents like flavanoids, saponins and tannins.