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Short Communication Open Access
Preliminary phytochemical screening showed the presence of terpenes, flavonoids, tannins, alkaloids, phenolic acid, sterols, and glycosides. This study was intended to evaluate the antiinflammatory activity of various extracts of fresh leaves of Clerodendrum paniculatum Linn experimentally by in vitro (human red blood cell membrane stabilization method) and in vivo methods (0.1 ml of 1% w/v carrageenan-induced rat paw oedema model). Petroleum ether, chloroform, ethyl acetate, alcohol, and aqueous extracts were screened for in vitro antiinflammatory activity. Petroleum ether and chloroform extracts which showed, best in vitro antiinflammatory activity was screened for in vivo antiinflammatory activity at the dose level of 200 and 400 mg/kg. Indomethacin at the dose level of 10 mg/kg was used as reference standard drug. Both the extracts showed a dose dependent significant (P<0.001) reduction in paw edema when compared to the control, at all the time intervals and comparable to indomethacin (reference standard) treated group. The results of the present study demonstrate that petroleum ether and chloroform extracts possess significant (P<0.001) antiinflammatory potential which provide scientific basis for the traditional claims of Clerodendrum paniculatum Linn leaves as an antiinflammatory drug.
Antiinflammatory activity, carrageenan, Clerodendrum paniculatum Linn, human red blood cells membrane, verbenaceae