Drug interactions
Fedratinib + Vinblastine
Severity: Moderate
Fedratinib and Vinblastine: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Fedratinib is a moderate CYP3A4 inhibitor and may increase vinblastine concentrations. This raises the risk of myelosuppression and neurotoxicity.
What this interaction means in plain words
Fedratinib and Vinblastine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Fedratinib belongs to Oncology; Vinblastine belongs to Oncology.
Why it happens
Fedratinib inhibits CYP3A4 metabolism of vinblastine.
What to do
Monitor blood counts and neurologic and bowel function, and reduce the vinblastine dose if toxicity develops.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Fedratinib and Vinblastine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Vinblastine
Other interactions of Fedratinib
- Fedratinib + Thioridazine Contraindicated
- Amobarbital + Fedratinib Major
- Apalutamide + Fedratinib Major
- Brexpiprazole + Fedratinib Major
- Carbamazepine + Fedratinib Major
- Chloramphenicol + Fedratinib Major
Frequently asked questions
Can I take Fedratinib with Vinblastine?
MediHelp rates the interaction as moderate. Fedratinib and Vinblastine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Fedratinib is a moderate CYP3A4 inhibitor and may increase vinblastine concentrations. This raises the risk of myelosuppression and neurotoxicity.
How serious is the interaction between Fedratinib and Vinblastine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts and neurologic and bowel function, and reduce the vinblastine dose if toxicity develops.
What other medicines interact with Vinblastine?
MediHelp also lists interactions of Vinblastine with, for example, Adenovirus types 4 and 7 live, Apalutamide, Atazanavir. The full list is on the Vinblastine page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
