Drug interactions
Fexinidazole + Vinorelbine
Severity: Major
Fexinidazole and Vinorelbine: major 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
Fexinidazole may inhibit CYP3A4, which is a main route of vinorelbine metabolism. Higher vinorelbine exposure could increase neutropenia, neuropathy and constipation or ileus.
What this interaction means in plain words
Fexinidazole and Vinorelbine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Inhibition of CYP3A4-mediated metabolism of vinorelbine reduces its clearance.
What to do
Avoid the combination if possible; fexinidazole is a short course, so consider timing vinorelbine outside treatment. If unavoidable, monitor blood counts and neurologic and bowel toxicity closely and consider vinorelbine dose reduction.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Vinorelbine
Frequently asked questions
Can I take Fexinidazole with Vinorelbine?
MediHelp rates the interaction as major. Fexinidazole and Vinorelbine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Fexinidazole may inhibit CYP3A4, which is a main route of vinorelbine metabolism. Higher vinorelbine exposure could increase neutropenia, neuropathy and constipation or ileus.
How serious is the interaction between Fexinidazole and Vinorelbine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination if possible; fexinidazole is a short course, so consider timing vinorelbine outside treatment. If unavoidable, monitor blood counts and neurologic and bowel toxicity closely and consider vinorelbine dose reduction.
What other medicines interact with Vinorelbine?
MediHelp also lists interactions of Vinorelbine with, for example, Adenovirus types 4 and 7 live, Apalutamide, Belatacept. The full list is on the Vinorelbine page.
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