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Med Mycol. 1998 Dec;36(6):433-6.

Antifungal activity of a new triazole, voriconazole (UK-109,496), compared with three other antifungal agents tested against clinical isolates of filamentous fungi.

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Department of Pathology, University of Iowa College of Medicine, Iowa City 52242, USA.


Voriconazole is a new triazole antifungal agent with potent activity against yeast and moulds. We investigated the in vitro activity of voriconazole, itraconazole, amphotericin B and 5-flucytosine against 51 clinical isolates of filamentous fungi. Overall, voriconazole was active (MIC50, 0.5 mg l(-1) and MIC90, 8 mg l(-1)) against these mould isolates. Voriconazole was most active against P. boydii (MIC50, 0.12 mg l(-1)) and Aspergillus spp. (MIC90, 0.5 mg l(-1)) and least active against Fusarium spp. (MIC90, 8 mg l(-1)) and Rhizopus spp. (MIC50, 8 mg l(-1)). Voriconazole was more active than amphotericin B against Aspergillus spp. and P. boydii. By comparison with itraconazole, voriconazole was more active against all isolates except Rhizopus spp. Based on these results, voriconazole has promising activity against commonly encountered isolates of filamentous fungi and its clinical usefulness should be established by further studies.

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