Drug interactions
Bendamustine + Ivacaftor
Severity: Minor
Bendamustine and Ivacaftor: minor 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
Ivacaftor and its metabolite weakly inhibit P-gp, which can raise exposure to sensitive substrates. Bendamustine is not a recognized sensitive P-gp substrate, so a clinically meaningful effect is unlikely.
What this interaction means in plain words
Bendamustine and Ivacaftor have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Bendamustine belongs to Oncology; Ivacaftor belongs to Miscellaneous.
Why it happens
Weak P-gp inhibition by ivacaftor may slightly increase bendamustine exposure.
What to do
No dose adjustment is required; rely on standard blood count monitoring for bendamustine.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Bendamustine
Other interactions of Ivacaftor
- Ensitrelvir + Ivacaftor Contraindicated
- Apalutamide + Ivacaftor Major
- Carbamazepine + Ivacaftor Major
- Clarithromycin + Ivacaftor Major
- Efavirenz + Ivacaftor Major
- Enzalutamide + Ivacaftor Major
Frequently asked questions
Can I take Bendamustine with Ivacaftor?
MediHelp rates the interaction as minor. Bendamustine and Ivacaftor have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ivacaftor and its metabolite weakly inhibit P-gp, which can raise exposure to sensitive substrates. Bendamustine is not a recognized sensitive P-gp substrate, so a clinically meaningful effect is unlikely.
How serious is the interaction between Bendamustine and Ivacaftor?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose adjustment is required; rely on standard blood count monitoring for bendamustine.
What other medicines interact with Bendamustine?
MediHelp also lists interactions of Bendamustine with, for example, Axicabtagene ciloleucel, Brexucabtagene autoleucel, Chlorambucil. The full list is on the Bendamustine page.
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