Vincristine and Voriconazole: Drug Interaction Guide
Quick answer: This is a major interaction — avoid combining Vincristine and Voriconazole unless specifically directed by your doctor.
How Vincristine interacts with Voriconazole
Voriconazole inhibits CYP3A4, increasing vincristine exposure and dramatically worsening neurotoxicity (severe peripheral neuropathy, autonomic dysfunction, paralytic ileus, seizures).
What you should do
Combination is contraindicated. Use alternative antifungal (liposomal amphotericin B or echinocandin) during vincristine therapy in pediatric oncology and lymphoma protocols.
Key facts
Severity
Major — avoid combination
Mechanism
Voriconazole inhibits CYP3A4, increasing vincristine exposure and dramatically worsening neurotoxicity (severe periphera...
Action
Combination is contraindicated. Use alternative antifungal (liposomal amphotericin B or echinocandin) during vincristine...
Frequently asked questions
Can I take Vincristine and Voriconazole together?
No — this combination should generally be avoided. Combination is contraindicated. Use alternative antifungal (liposomal amphotericin B or echinocandin) during vincristine therapy in pediatric oncology and lymphoma protocols.
What is the severity of this interaction?
The interaction between Vincristine and Voriconazole is classified as Major — avoid combination. Voriconazole inhibits CYP3A4, increasing vincristine exposure and dramatically worsening neurotoxicity (severe peripheral neuropathy, autonomic dysfunction, paralytic ileus, seizures).
What should I do if I'm prescribed both?
Combination is contraindicated. Use alternative antifungal (liposomal amphotericin B or echinocandin) during vincristine therapy in pediatric oncology and lymphoma protocols. Always consult your prescribing clinician — do not stop or change medications without medical guidance.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.