Long‐term Ketoconazole Treatment of Chronic Acral Dermatophyte Infections

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Abstract
Ketoconazole 200-400 mg was given once daily for a maximum period of 12 months to 31 patients with chronic (mean duration, 12 years) dermatophyte infections of the hands and/or feet. Griseofulvin had previously been withdrawn due to intolerance or lack of effect. All skin and nail infections improved clinically. Fifty percent of the patients with skin infections and 26% of those with nail infections became clinically clear and culture-negative. Six months later, relapses had occurred in 8 of 12 patients (67%) with cleared skin lesions, and in 2 of 5 (40%) with cleared nail infections. Ketoconazole was discontinued in one patient due to headache and in another due to asymptomatic transient elevation of hepatic laboratory tests. Ketoconazole is an alternative when a replacement for griseofulvin is required, provided the degree of disability justifies the risk of drug toxicity.

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