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Antiinflammatory Activity of Flubiprofen Gel on Carrageenan-induced Edema

Antiinflammatory activity of an 1% flurbiprofen transdermal gel was evaluated using the carrageenan-Induced rat paw edema method. The application of 50 mg of the gel on the rat hind paw, at various time intervals from 0 to 24 hrs before the carrageenan injection, significantly inhibited edema formation in all groups of dosed rats, indicating that the antiinflammatory activitv was maintained up to 24 hrs after the transdermal application of the 1% flurbiprofen gel. The topical $ED_{50}$ of flurbiprofen in the gel was 1.0 mg/kg, whereas the oral $ED_{50}$ of the drug in a suspension was 1.7 mg/kg.