Drug interactions
Irinotecan liposomal + Siponimod
Severity: Moderate
Irinotecan liposomal 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
Liposomal irinotecan commonly causes neutropenia and myelosuppression. Siponimod lowers lymphocytes, so the combination may increase susceptibility to infection.
What this interaction means in plain words
Irinotecan liposomal 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.
Why it happens
Additive immunosuppression from cytotoxic myelosuppression and S1P-receptor-mediated lymphocyte sequestration.
What to do
Monitor complete blood counts and infections throughout therapy. Consider interrupting siponimod if severe neutropenia or infection develops.
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
Frequently asked questions
Can I take Irinotecan liposomal with Siponimod?
MediHelp rates the interaction as moderate. Irinotecan liposomal 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. Liposomal irinotecan commonly causes neutropenia and myelosuppression. Siponimod lowers lymphocytes, so the combination may increase susceptibility to infection.
How serious is the interaction between Irinotecan liposomal 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 complete blood counts and infections throughout therapy. Consider interrupting siponimod if severe neutropenia or infection develops.
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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