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Use of voriconazole, a triazole antifungal drug, has often been associated with photosensitivity, and this adverse reaction has been linked to a risk of tumours in light-exposed areas, especially squamous cell carcinomas, but also melanomas. The mechanisms by which voriconazole causes these effects are not clear, but susceptibility factors for a predisposition to skin cancers include duration of use, immunosuppression, ultraviolet (UV) exposure, advanced age, and skin type. Voriconazole should be used carefully, particularly in patients with susceptibility factors for skin cancer. If prolonged voriconazole therapy is required, it is advisable to have frequent diligent skin examinations, to avoid excess sunlight, and to use UV protectants liberally.

Original publication




Journal article


Adverse Drug Reaction Bulletin

Publication Date





1119 - 1122