Samtidig anvendelse af ketoconazole, en kendt, kraftig CYP 3A4- hæmmer, hæmmer ikke elimineringen af paclitaxel hos patienterne; derfor kan begge lægemidler indgives sammen uden justering af doseringen.
Concurrent administration of ketoconazole, a known potent inhibitor of CYP3A4, does not inhibit the elimination of paclitaxel in patients; thus, both medicinal products may be administered together without dosage adjustment.