Levels of fluconazole in normal and diseased nails during and after treatment of onychomycoses in toe-nails with fluconazole 150 mg once weekly.

TL;DRAbstract

Thirty-six patients with onychomycoses of their toe-nails were included in a double-blind, parallel-group comparative study of fluconazole 150 mg once weekly and griseofulvin 1,000 mg once daily for 12 months, or earlier if cured. Every month during treatment and in cured patients 3 and 6 months after stop of treatment one toe-nail was clipped and serum samples were taken. In patients treated with fluconazole the concentration of fluconazole was measured in serum and nails. We found a very high concentration of fluconazole in nails (peak 8.54 micrograms/g) and the nail concentration was statistically significantly higher than serum concentrations (p < 0.001). In cured patients fluconazole was still present in high concentrations 3 (1.7 micrograms/g) and 6 (1.4 micrograms/g) months after stop of treatment. These results indicate that fluconazole should be effective in the treatment of onychomycosis in a dose of 150 mg once weekly. The results also indicate that the treatment period coul

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