Effects of pH on the Activity of Ketoconazole Against <i>Candida albicans</i>

Abstract

The activity of ketoconazole against Candida albicans in Sabouraud glucose medium was markedly influenced by pH. Minimum inhibitory concentrations of this imidazole against both a standard strain and clinical isolates ranged from 40 mug/ml at pH 3 to 0.02 mug/ml at pH 7, a greater than 1,000-fold difference.