Routine application of the evaluation of yeasts susceptibility to the main antimycotic drugs.

We evaluated the susceptibility of 618 strains of yeasts belonging to the genus Candida, isolated from various biological specimens. Amphotericin B, Nystatin, Fluorocytosine, Clotrimazole, Miconazole, Econazole and Ketoconazole were tested with the Kirby-Bauer method, modified according to Drouhet and Dupont. The polyenes Amphotericin B and Nystatin and the antimetabolyte Fluorocytosine were the most effective drugs, while the imidazole derivatives (Clotrimazole, Miconazole, Econazole and Ketoconazole) generally showed a lower activity. We emphasize the importance of routine evaluation of the susceptibility of isolated yeasts to the main antimycotic drugs.