title: Suprofen, a potent antagonist of ultraviolet-erythema in guinea-pigs.
abstract: A standardized ultraviolet erythema test in guinea-pigs is described in detail. The erythema reaction to 120 sec of UV irradiation was assessed after 1, 2 and 4 h. A direct quantitative comparison of the anti-erythema effect was made between phenylbutazone, indometacin, tolmetin, ketoprofen and alpha-methyl-4-(2-thienylcarbonyl)benzeneacetic acid (suprofen) in a specially designed experiment. All compounds were given by oral gavage 1 h before irradiation. Among the compounds studied suprofen was the most potent antagonist of ultraviolet-induced erythema in guinea-pigs, i.e. about 45 times tolmetin, 25 times phenylbutazone, 10 times indometacin and 5 times ketoprofen activity.
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D004353:Drug Evaluation, Preclinical; D004890:Erythema / Q000188:drug therapy*; D006168:Guinea Pigs; D007213:Indomethacin / Q000627:therapeutic use; D007660:Ketoprofen / Q000627:therapeutic use; D008297:Male; D010653:Phenylbutazone / Q000627:therapeutic use; D010666:Phenylpropionates / Q000627:therapeutic use*; D013876:Thiophenes / Q000627:therapeutic use*; D013997:Time Factors; D014046:Tolmetin / Q000627:therapeutic use; D014466:Ultraviolet Rays
chemical_list: D000893:Anti-Inflammatory Agents; D010666:Phenylpropionates; D013876:Thiophenes; D007660:Ketoprofen; D014046:Tolmetin; D010653:Phenylbutazone; D007213:Indomethacin