Drug interactions
Amiodarone + Etrasimod
Severity: Major
Amiodarone 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 is cleared by CYP2C8, CYP2C9 and CYP3A4. Amiodarone inhibits CYP2C9 and CYP3A4 and may raise etrasimod exposure. Both drugs can slow heart rate and conduction, so bradyarrhythmia risk is a concern.
What this interaction means in plain words
Amiodarone 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.
Amiodarone belongs to Cardiovascular; Etrasimod belongs to Gastrointestinal Tract.
Why it happens
Inhibition of CYP2C9 and CYP3A4 by amiodarone raises etrasimod levels, with additive bradycardic effects.
What to do
Avoid the combination; labeling advises against etrasimod with moderate-to-strong dual CYP2C9/CYP3A4 inhibitors. If unavoidable, monitor heart rate and ECG.
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 Amiodarone
- Amiodarone + Amisulpride Contraindicated
- Amiodarone + Arsenic trioxide Contraindicated
- Amiodarone + Dofetilide Contraindicated
- Amiodarone + Dronedarone Contraindicated
- Amiodarone + Droperidol Contraindicated
- Amiodarone + Eliglustat Contraindicated
Other interactions of Etrasimod
- Abatacept + Etrasimod Major
- Anagrelide + Etrasimod Major
- Anakinra + Etrasimod Major
- Anti-thymocyte + Etrasimod Major
- Asenapine + Etrasimod Major
- Baricitinib + Etrasimod Major
Frequently asked questions
Can I take Amiodarone with Etrasimod?
MediHelp rates the interaction as major. Amiodarone 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 is cleared by CYP2C8, CYP2C9 and CYP3A4. Amiodarone inhibits CYP2C9 and CYP3A4 and may raise etrasimod exposure. Both drugs can slow heart rate and conduction, so bradyarrhythmia risk is a concern.
How serious is the interaction between Amiodarone 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 the combination; labeling advises against etrasimod with moderate-to-strong dual CYP2C9/CYP3A4 inhibitors. If unavoidable, monitor heart rate and ECG.
What other medicines interact with Amiodarone?
MediHelp also lists interactions of Amiodarone with, for example, Amisulpride, Arsenic trioxide, Dofetilide. The full list is on the Amiodarone page.
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