Drug interactions
Lofexidine + Ponesimod
Severity: Major
Lofexidine and Ponesimod: major interaction.
Last updated Sources: UK SmPC
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
Both drugs lower heart rate, so combined use can cause pronounced bradycardia and hypotension. Ponesimod can also delay atrioventricular conduction, which adds risk.
What this interaction means in plain words
Lofexidine and Ponesimod 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.
Lofexidine belongs to Central Nervous System; Ponesimod belongs to Central Nervous System.
Why it happens
Additive bradycardic effects through S1P receptor modulation and central alpha-2 agonism.
What to do
Avoid starting ponesimod in patients taking heart-rate-lowering drugs unless cardiology advises. If combined, monitor heart rate, ECG and blood pressure.
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
- Ponvory 2, 3, 4, 5, 6, 7, 8, 9, 10 mg film-coated tablets - SmPC sections 4.3/4.5 (class statement: medicinal products that may decrease heart rate; "Anti-arrhythmic medicinal products, QT prolonging medicinal products, medicinal products that may decrease heart rate") — electronic medicines compendium (UK SmPC)
Other interactions of Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
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 Lofexidine with Ponesimod?
MediHelp rates the interaction as major. Lofexidine and Ponesimod 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. Both drugs lower heart rate, so combined use can cause pronounced bradycardia and hypotension. Ponesimod can also delay atrioventricular conduction, which adds risk.
How serious is the interaction between Lofexidine and Ponesimod?
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 taking heart-rate-lowering drugs unless cardiology advises. If combined, monitor heart rate, ECG and blood pressure.
What other medicines interact with Lofexidine?
MediHelp also lists interactions of Lofexidine with, for example, Adagrasib, Alfuzosin, Amiodarone. The full list is on the Lofexidine page.
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