[Comparative study on the efficacy of diflucortolone valerate in the psoriasis plaque test (author's transl)].

Diflucortolone valerate was administered to 35 psoriatic patients of both sexes in 0.3% concentration as a W/O emulsion in comparison with various commercially available preparations to study its action in the psoriasis plaque test according to Scholtz and Dumas. The study showed the test substance to be equipotent with the halcinonide, clobetasol-17-propionate and desoximetasone preparations and significantly superior to those containing betamethasone-17,21-dipropionate, betamethasone-17-valerate and fluocinonide.