Drug interactions
Betaxolol + Siponimod
Severity: Moderate
Betaxolol 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 causes a transient heart rate reduction on initiation. With betaxolol, bradycardia and AV conduction delay may be more pronounced.
What this interaction means in plain words
Betaxolol 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.
Betaxolol belongs to Cardiovascular; Siponimod belongs to Central Nervous System.
Why it happens
Additive heart rate lowering from S1P receptor modulation and beta-1 blockade.
What to do
Follow the siponimod titration schedule and monitor heart rate and ECG at initiation. Consider temporarily interrupting betaxolol before starting siponimod, with cardiology advice where appropriate.
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 Betaxolol
- Acebutolol + Betaxolol Major
- Aldesleukin + Betaxolol Major
- Amifostine + Betaxolol Major
- Amiodarone + Betaxolol Major
- Atenolol-chlorthalidone + Betaxolol Major
- Atenolol + Betaxolol 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 Betaxolol with Siponimod?
MediHelp rates the interaction as moderate. Betaxolol 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 causes a transient heart rate reduction on initiation. With betaxolol, bradycardia and AV conduction delay may be more pronounced.
How serious is the interaction between Betaxolol 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: Follow the siponimod titration schedule and monitor heart rate and ECG at initiation. Consider temporarily interrupting betaxolol before starting siponimod, with cardiology advice where appropriate.
What other medicines interact with Betaxolol?
MediHelp also lists interactions of Betaxolol with, for example, Acebutolol, Aldesleukin, Amifostine. The full list is on the Betaxolol page.
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