Drug interactions
Siponimod + Vinblastine
Severity: Moderate
Siponimod and Vinblastine: 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
Vinblastine commonly causes leukopenia and neutropenia, and siponimod lowers lymphocyte counts. Combined use may increase the risk of infection.
What this interaction means in plain words
Siponimod and Vinblastine 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 belongs to Central Nervous System; Vinblastine belongs to Oncology.
Why it happens
Additive effects: S1P receptor-mediated lymphocyte sequestration plus vinca alkaloid bone marrow suppression.
What to do
Monitor complete blood counts with differential and signs of infection. Consider holding siponimod during myelosuppressive chemotherapy.
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 Vinblastine
Frequently asked questions
Can I take Siponimod with Vinblastine?
MediHelp rates the interaction as moderate. Siponimod and Vinblastine 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. Vinblastine commonly causes leukopenia and neutropenia, and siponimod lowers lymphocyte counts. Combined use may increase the risk of infection.
How serious is the interaction between Siponimod and Vinblastine?
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 with differential and signs of infection. Consider holding siponimod during myelosuppressive chemotherapy.
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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