Evaluation of Anti-inflammatory activity of Nyctanthes arbor-tristis and Onosma echioides.

Anti-inflammatory activity of the ethanolic extract of the orange tubular calyx of N.arbor-tristis and pet.ether extract of root bark of O.echioides was studied in albino rats of Wistar strain using the carrageenan induced paw edema model. The ethanolic extract of N.arbor-tristis (200 mg/kg, i.p.), isolated carotenoid from the extract N.arbor-tristis (200mg/Kg, i.p.) and pet.ether extract of O.echioides (5mg/Kg, i.p.) inhibited carrageenan induced rat paw edema. The results indicated that all the extract produced significant (p < 0.05) anti-inflammatory activity when compared with the standard drug (diclofenac sodium) and untreated control.