Voriconazole Products | Cleanchem - Voriconazole is a broad-spectrum antifungal medication used to treat serious fungal infections such as invasive aspergillosis and candidemia. It belongs to the triazole class and works by inhibiting the synthesis of ergosterol, a key component of fungal cell membranes. Voriconazole is particularly important in immunocompromised patients, such as those undergoing chemotherapy or organ transplantation. It has largely replaced amphotericin B in many settings due to better efficacy and tolerability.