Drug interactions
Siponimod + Sirukumab
Severity: Moderate
Siponimod and Sirukumab: 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
Sirukumab is an interleukin-6 antagonist that increases susceptibility to infection. Siponimod reduces circulating lymphocytes, so the combination may add to infection risk.
What this interaction means in plain words
Siponimod and Sirukumab 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 pharmacodynamic immunosuppression through IL-6 blockade and S1P receptor-mediated lymphocyte sequestration.
What to do
Monitor for signs of infection and lymphocyte counts. Treat active infections before starting and stop one agent if serious 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 Siponimod with Sirukumab?
MediHelp rates the interaction as moderate. Siponimod and Sirukumab 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. Sirukumab is an interleukin-6 antagonist that increases susceptibility to infection. Siponimod reduces circulating lymphocytes, so the combination may add to infection risk.
How serious is the interaction between Siponimod and Sirukumab?
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 for signs of infection and lymphocyte counts. Treat active infections before starting and stop one agent if serious 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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