Drug interactions
Bendamustine + Etrasimod
Severity: Major
Bendamustine and Etrasimod: 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
Etrasimod lowers circulating lymphocytes through S1P receptor modulation, and bendamustine is lymphotoxic and myelosuppressive. Combined use may add to immunosuppression and infection risk, and it has not been studied.
What this interaction means in plain words
Bendamustine and Etrasimod 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.
Bendamustine belongs to Oncology; Etrasimod belongs to Gastrointestinal Tract.
Why it happens
Additive immunosuppression from S1P-mediated lymphocyte sequestration and bendamustine myelosuppression.
What to do
Avoid combining where possible, allowing for prolonged immune effects after etrasimod is stopped. If used together, monitor blood counts and infections.
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 Bendamustine
Other interactions of Etrasimod
- Abatacept + Etrasimod Major
- Amiodarone + Etrasimod Major
- Anagrelide + Etrasimod Major
- Anakinra + Etrasimod Major
- Anti-thymocyte + Etrasimod Major
- Asenapine + Etrasimod Major
Frequently asked questions
Can I take Bendamustine with Etrasimod?
MediHelp rates the interaction as major. Bendamustine and Etrasimod 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. Etrasimod lowers circulating lymphocytes through S1P receptor modulation, and bendamustine is lymphotoxic and myelosuppressive. Combined use may add to immunosuppression and infection risk, and it has not been studied.
How serious is the interaction between Bendamustine and Etrasimod?
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 combining where possible, allowing for prolonged immune effects after etrasimod is stopped. If used together, monitor blood counts and infections.
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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