Skin vasoconstriction effect of contact antiphlogistics

Five contact antiphlogistics were evaluated and compared to hydrocortisone by the human skin vasoconstriction assay in 20 volunteers. The test concentrations ranged from 10(-2) to 10(-6) w/w; the duration of occlusive application was 16 h. The substances could be ranked as follows in ascending order of activity (index values in relation to hydrocortisone).