Formulation and screening of analgesic activity of different analgesic gel preparations

This study was aimed to investigate the dermal irritant test and the central analgesic effects of topical application of seven different formulations (A-G) of analgesic gel prepared from locally available raw material in animal model. The results of dermal irritant test revealed that no animal showed any kind of toxic effect i.e. redness, irritation, itching, inflammation, skin infection or any other injurious effects. All animals remained healthy, active, alert showing normal behavior and no mortality was observed during the claimed period. The analgesic activity was performed by tail flick test. The analgesic activity against tail flick test revealed that all samples of test gel had analgesic effect at 15, 30 and 60 minutes after sample application but sample D had highest analgesic effects (193%) followed by sample E (155%), sample C (122%), sample G (85%), sample B (84%),sample F (81%) while sample A exhibited (73%) analgesic activity. Wintogeno was run as standard drug and it showed 168% analgesic activity.