Drug interactions
Ponesimod + Sotalol
Severity: Major
Ponesimod and Sotalol: 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
Ponesimod lowers heart rate on treatment initiation, and sotalol also slows heart rate and prolongs the QT interval. Bradycardia increases the risk of torsades de pointes with class III antiarrhythmics, so the combination is hazardous.
What this interaction means in plain words
Ponesimod and Sotalol 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.
Ponesimod belongs to Central Nervous System; Sotalol belongs to Cardiovascular.
Why it happens
Additive bradycardic effects from S1P receptor modulation and beta-blockade, with bradycardia increasing sotalol-related QT risk.
What to do
Avoid starting ponesimod in patients on sotalol unless a cardiologist agrees; if used, check ECG and resting heart rate beforehand and monitor during uptitration.
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 Ponesimod and Sotalol, 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.
References
Other interactions of Sotalol
- Arsenic trioxide + Sotalol Contraindicated
- Artemether / lumefantrine + Sotalol Contraindicated
- Disopyramide + Sotalol Contraindicated
- Dofetilide + Sotalol Contraindicated
- Dronedarone + Sotalol Contraindicated
- Droperidol + Sotalol Contraindicated
Other interactions of Ponesimod
- Fingolimod + Ponesimod Contraindicated
- Ponesimod + Siponimod Contraindicated
- Amiodarone + Ponesimod Major
- Amisulpride + Ponesimod Major
- Anagrelide + Ponesimod Major
- Anti-thymocyte + Ponesimod Major
Frequently asked questions
Can I take Ponesimod with Sotalol?
MediHelp rates the interaction as major. Ponesimod and Sotalol 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. Ponesimod lowers heart rate on treatment initiation, and sotalol also slows heart rate and prolongs the QT interval. Bradycardia increases the risk of torsades de pointes with class III antiarrhythmics, so the combination is hazardous.
How serious is the interaction between Ponesimod and Sotalol?
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 starting ponesimod in patients on sotalol unless a cardiologist agrees; if used, check ECG and resting heart rate beforehand and monitor during uptitration.
What other medicines interact with Sotalol?
MediHelp also lists interactions of Sotalol with, for example, Arsenic trioxide, Artemether / lumefantrine, Disopyramide. The full list is on the Sotalol 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.
