Drug interactions
Ibrutinib + Siponimod
Severity: Moderate
Ibrutinib 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
Ibrutinib impairs B-cell signaling and is associated with infections including opportunistic ones, and siponimod lowers lymphocytes. The combination may add to infection risk.
What this interaction means in plain words
Ibrutinib 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.
Ibrutinib belongs to Oncology; Siponimod belongs to Central Nervous System.
Why it happens
Additive immune suppression via BTK inhibition and siponimod-induced lymphocyte sequestration.
What to do
Monitor lymphocyte counts and signs of infection. Consider prophylaxis per oncology practice and hold siponimod if serious infection occurs.
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 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 Ibrutinib
- Abciximab + Ibrutinib Major
- Acetylsalicylic acid + Ibrutinib Major
- Alteplase + Ibrutinib Major
- Amobarbital + Ibrutinib Major
- Apalutamide + Ibrutinib Major
- Apixaban + Ibrutinib Major
Frequently asked questions
Can I take Ibrutinib with Siponimod?
MediHelp rates the interaction as moderate. Ibrutinib 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. Ibrutinib impairs B-cell signaling and is associated with infections including opportunistic ones, and siponimod lowers lymphocytes. The combination may add to infection risk.
How serious is the interaction between Ibrutinib 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: Monitor lymphocyte counts and signs of infection. Consider prophylaxis per oncology practice and hold siponimod if serious infection occurs.
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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