Drug interactions
Crizotinib + Etrasimod
Severity: Major
Crizotinib and Etrasimod: major interaction.
Last updated Sources: US FDA label
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 reduces circulating lymphocytes, and crizotinib is an antineoplastic that can add to immune compromise. Combined use may raise the risk of infection, and this combination has not been studied.
What this interaction means in plain words
Crizotinib 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.
Crizotinib belongs to Oncology; Etrasimod belongs to Gastrointestinal Tract.
Why it happens
Additive immunosuppressive effects: etrasimod lymphocyte sequestration plus crizotinib myelosuppressive effects.
What to do
Avoid combining where possible. If necessary, monitor blood counts and for signs of infection during and for weeks after etrasimod.
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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References
Other interactions of Crizotinib
- Crizotinib + Flibanserin Contraindicated
- Crizotinib + Lomitapide Contraindicated
- Crizotinib + Lonafarnib Contraindicated
- Crizotinib + Pimozide Contraindicated
- Crizotinib + Saquinavir Contraindicated
- Crizotinib + Thioridazine Contraindicated
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 Crizotinib with Etrasimod?
MediHelp rates the interaction as major. Crizotinib 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 reduces circulating lymphocytes, and crizotinib is an antineoplastic that can add to immune compromise. Combined use may raise the risk of infection, and this combination has not been studied.
How serious is the interaction between Crizotinib 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. If necessary, monitor blood counts and for signs of infection during and for weeks after etrasimod.
What other medicines interact with Crizotinib?
MediHelp also lists interactions of Crizotinib with, for example, Flibanserin, Lomitapide, Lonafarnib. The full list is on the Crizotinib page.
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