Det kan være nødvendigt at justere voriconazoldosis: • Rifabutin (medicin mod tuberkulose) • Phenytoin (medicin mod epilepsi)
Tell your doctor if you are taking either of the following medicines, as treatment with VFEND at the same time should be avoided if possible, and a dose adjustment of voriconazole may be required:  Rifabutin (used for treating tuberculosis)  Phenytoin (used to treat epilepsy)