Anti-inflammatory action of sulfoaryl 3,3-disubstituted triazenes in rat experimental edema models

The acute toxicity and anti-inflammatory activity of eleven potassium salts of sulfobenzene and sulfonaphthalene 3,3-disubstituted triazenes have been examined in rats with carrageenin- and bentonite-induced edema using a 50 mg/kg p.o. dose. All compounds were found to exhibit anti-inflammatory activity significantly exceeding that of acetylsalicylic acid and ibuprofen, and were less toxic than these reference drugs. The most pronounced anti-inflammatory activity was shown by the potassium salt of 4-(piperazin-1-ylazo)benzenesulfonic acid.