Едновременното приложение на вориконазол и високи дози ритонавир (400 mg и повече два пъти дневно) е противопоказано.
One outlier subject with raised voriconazole levels was identified in each of the ritonavir interaction studies. Coadministration of voriconazole and ritonavir (400 mg and above twice daily) is contraindicated.