Drug interactions
Dronedarone + Etrasimod
Severity: Major
Dronedarone 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 causes transient heart rate slowing and AV conduction delay at initiation, and dronedarone also slows conduction and prolongs QT. Together they may increase the risk of bradyarrhythmia and torsades de pointes.
What this interaction means in plain words
Dronedarone 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.
Dronedarone belongs to Cardiovascular; Etrasimod belongs to Gastrointestinal Tract.
Why it happens
Additive effects on heart rate, AV conduction and QT interval.
What to do
Seek cardiology advice before starting etrasimod and obtain an ECG beforehand. Monitor heart rate and ECG at initiation, or choose an alternative therapy.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dronedarone and Etrasimod, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Dronedarone
- Adagrasib + Dronedarone Contraindicated
- Amiodarone + Dronedarone Contraindicated
- Arsenic trioxide + Dronedarone Contraindicated
- Artemether / lumefantrine + Dronedarone Contraindicated
- Atazanavir + Dronedarone Contraindicated
- Azithromycin + Dronedarone 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 Dronedarone with Etrasimod?
MediHelp rates the interaction as major. Dronedarone 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 causes transient heart rate slowing and AV conduction delay at initiation, and dronedarone also slows conduction and prolongs QT. Together they may increase the risk of bradyarrhythmia and torsades de pointes.
How serious is the interaction between Dronedarone 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: Seek cardiology advice before starting etrasimod and obtain an ECG beforehand. Monitor heart rate and ECG at initiation, or choose an alternative therapy.
What other medicines interact with Dronedarone?
MediHelp also lists interactions of Dronedarone with, for example, Adagrasib, Amiodarone, Arsenic trioxide. The full list is on the Dronedarone page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
