en پژوهشي Research Article In the present study, the analgesic and anti-inflammatory activities of a new alkaloid (5&prime;-Hydroxymethyl-1&prime;-(1,2,3,9-tetrahydro-pyrrolo [2,1-b] quinazolin-1-yl)-heptan-1-one) (compound 1), isolated from Sida cordifolia Linn. was investigated in animal models. The analgesic activity was investigated in the acetic acid induced writhing and the radiant heat tail flick model in mice and the carrageenan induced rat paw edema model was used for anti-inflammatory study. The compound produced significant ( p <0.01) analgesic activity in both models. The compound also exhibited significant ( p <0.01) inhibition of rat paw edema induced by carrageenan. These results indicated that compound 1 possessed analgesic and anti-inflammatory activities . 175 0 http://ijpt.iums.ac.ir/browse.php?a_code=A-10-100-96&slc_lang=en&sid=1 Ranajit Kumar Sutradhar 1003194753284600302 1003194753284600302 No AKM Matior Rahman 1003194753284600303 1003194753284600303 No Mesbahuddin Ahmad 1003194753284600304 1003194753284600304 No Sitesh Chandra Bachar 1003194753284600305 1003194753284600305 No Achinto Saha 1003194753284600306 1003194753284600306 No Samar Kumar Guha 1003194753284600307 1003194753284600307 No