pharmaceutical characterization and in vivo evaluation of the possible anti-inflammatory effect of topical allopurinol gel in an animal model

Dermatitis, like inflammation, is a group of common dermatological symptoms and may be associated with systemic and skin diseases. the objective of the current study is to evaluate the potential anti-inflammatory effect of the topical allopurinol against inflammation like skin dermatitis induced by1-isobutyl-1h-imidazo [4,5-c]quinolin-4-amine (iqa) in mice model. the current study allocated the thirty-two mice into four groups (n=8) as follows: i) control group, mice where a white petroleum jelly base applied topically on the dorsal of mice once daily; ii) induction group, mice were received iqa cream (62.5 mg) of (5%) on their back once daily; and iii) the treatment group, mice were treated with both (62.5 mg) of (5%) iqa and (5%) allopurinol gel topically; the betamethasone group, mice were treated with both (62.5 mg) of (5%) iqa and betamethasone ointment topically. all groups were treated daily for seven days period. the allopurinol-treated group exerted non-significant differences compared with the induction group in both visional and histopathological changes. the present study revealed that the allopurinolgel (5%) did not affect skin inflammation- induced by iqa in the laboratory mice.