Aprepitant and Vincristine interaction

Aprepitant and Vincristine: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Vincristine (VinCRIStine Sulfate) label · effective 2026-02-17

Major

Therefore, the concomitant use of strong CYP3A inhibitors with vincristine sulfate should be avoided.

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Moderate

Patients should be frequently monitored for adverse reactions with concomitant use of moderate CYP3A inhibitors (e.g., fluconazole) with vincristine sulfate.

Drug interactionsby drug classView label on DailyMed
Minor

Concurrent use of strong CYP3A inducers (e.g., St.

Drug interactionsby drug classView label on DailyMed

From the Aprepitant (CINVANTI) label · effective 2026-04-01

Moderate

Intervention Vinblastine, vincristine, or ifosfamide or other chemotherapeutic agents Monitor for chemotherapeutic-related adverse reactions.

Drug interactionsnames VincristineView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.