Meclofenomate inhibition of UV-induced erythema--a randomized, placebo-controlled, double-blind study.

Systemic intradermal and topical inhibitors of eicosanoid synthesis have been shown to decrease the intensity delay the onset of erythema produced with a single exposure to ultraviolet (UV) light. We studied the effect of single and multiple doses of meclofenomate on erythema induced by single and multiple doses of UV light. Thirty Caucasian subjects took either meclofenomate 100 mg t.i.d. or matching placebo for 5 days, crossing over to the alternative for 5 more days after a 2-day washout period. A statistical analysis was made of erythema response immediately prior to the study and then on 8 successive days during the study. Analysis of single and multiple exposure data revealed a statistically significant inhibition of erythema from meclofenomate therapy as compared with placebo.