Drug interactions
Anagrelide + Siponimod
Severity: Major
Anagrelide and Siponimod: 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
Anagrelide can prolong the QT interval and cause tachyarrhythmias, while siponimod slows heart rate and conduction. The combination may increase arrhythmia risk.
What this interaction means in plain words
Anagrelide and Siponimod 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.
Anagrelide belongs to Cardiovascular; Siponimod belongs to Central Nervous System.
Why it happens
Additive effects on cardiac repolarisation and rhythm.
What to do
Avoid if possible; if used, obtain a baseline ECG, correct electrolytes and monitor QTc and heart rate.
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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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
Other interactions of Anagrelide
- Anagrelide + Panobinostat Contraindicated
- Anagrelide + Pimozide Contraindicated
- Anagrelide + Thioridazine Contraindicated
- Anagrelide + Vandetanib Contraindicated
- Abrocitinib + Anagrelide Major
- Alfuzosin + Anagrelide Major
Frequently asked questions
Can I take Anagrelide with Siponimod?
MediHelp rates the interaction as major. Anagrelide and Siponimod 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. Anagrelide can prolong the QT interval and cause tachyarrhythmias, while siponimod slows heart rate and conduction. The combination may increase arrhythmia risk.
How serious is the interaction between Anagrelide and Siponimod?
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 if possible; if used, obtain a baseline ECG, correct electrolytes and monitor QTc and heart rate.
What other medicines interact with Siponimod?
MediHelp also lists interactions of Siponimod with, for example, Cladribine, Fingolimod, Fluconazole. The full list is on the Siponimod page.
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