Drug interactions
Propranolol + Siponimod
Severity: Moderate
Propranolol and Siponimod: moderate 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
Siponimod slows heart rate when it is first started, and propranolol adds to this effect. The combination can cause pronounced bradycardia or conduction delay during initiation.
What this interaction means in plain words
Propranolol and Siponimod can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Propranolol belongs to Cardiovascular; Siponimod belongs to Central Nervous System.
Why it happens
Additive negative chronotropic effects: S1P receptor modulation in the atria plus beta-adrenergic blockade.
What to do
Seek cardiology advice before starting siponimod in a patient on a beta-blocker, and consider temporarily interrupting the beta-blocker. Use the standard dose titration with first-dose heart rate monitoring.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Propranolol
- Propranolol + Thioridazine Contraindicated
- Acebutolol + Propranolol Major
- Adrenaline-articaine + Propranolol Major
- Amifostine + Propranolol Major
- Amiodarone + Propranolol Major
- Arformoterol + Propranolol Major
Other interactions of Siponimod
- Cladribine + Siponimod Contraindicated
- Fingolimod + Siponimod Contraindicated
- Fluconazole + Siponimod Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Siponimod Contraindicated
- Ponesimod + Siponimod Contraindicated
- Siponimod + Thioridazine Contraindicated
Frequently asked questions
Can I take Propranolol with Siponimod?
MediHelp rates the interaction as moderate. Propranolol and Siponimod can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Siponimod slows heart rate when it is first started, and propranolol adds to this effect. The combination can cause pronounced bradycardia or conduction delay during initiation.
How serious is the interaction between Propranolol and Siponimod?
MediHelp rates it moderate, 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 siponimod in a patient on a beta-blocker, and consider temporarily interrupting the beta-blocker. Use the standard dose titration with first-dose heart rate monitoring.
What other medicines interact with Propranolol?
MediHelp also lists interactions of Propranolol with, for example, Thioridazine, Acebutolol, Adrenaline-articaine. The full list is on the Propranolol page.
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