Fredriksson T, Nordin K
Curr Med Res Opin. 1979;6(5):322-4. doi: 10.1185/03007997909109445.
In a double-blind, randomized study, 0.05% clobetasone butyrate cream was found to be as effective as 0.1% betamethasone valerate in the treatment of 48 patients with atopic or contact dermatitis, after 2 weeks as well as after 4 weeks of treatment. Side-effects with both drugs were rare and mild.