The use of fluconazole and itraconazole in the treatment of Candida albicans infections: a review

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Abstract
Candida albicans is responsible for most fungal infections in humans. Fluconazole is well established as a first-line management option for the treatment and prophylaxis of localized and systemic C. albicans infections. Fluconazole exhibits predictable pharmacokinetics and is effective, well tolerated and suitable for use in most patients with C. albicans infections, including children, the elderly and those with impaired immunity. Prophylactic administration of fluconazole can help to prevent fungal infections in patients receiving cytotoxic cancer therapy. The increasing use of fluconazole for the long-term prophylaxis and treatment of recurrent oral candidosis in AIDS patients has led to the emergence of C. albicansinfections that are not responsive to conventional doses. Second-line therapy with a wider spectrum antifungal, such as itraconazole, should be sought if treatment with fluconazole fails. A solution formulation of itraconazole has recently been introduced to overcome the poor and variable absorption of its original capsule formulation. Efficacy and tolerability studies in HIV-positive or immunocompromised patients with C. albicans infections have shown that, although itraconazole solution is as effective as fluconazole, it is less well tolerated as first-line therapy. Itraconazole solution can be effective in AIDS patients with C. albicansinfections that are non-responsive to fluconazole. No efficacy or tolerability data are available on the use of itraconazole solution in children or the elderly.

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