Drug interactions
Measles mumps and rubella vaccine live + Siponimod
Severity: Major
Measles mumps and rubella vaccine live 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
Live MMR vaccine carries a risk of disseminated vaccine-strain infection in patients on siponimod, and the immune response may be impaired.
What this interaction means in plain words
Measles mumps and rubella vaccine live 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.
Why it happens
S1P receptor modulation impairs lymphocyte-mediated immunity, allowing replication of live attenuated viruses.
What to do
Avoid during siponimod therapy and for 4 weeks after stopping. Vaccinate at least 4 weeks before starting treatment.
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
Frequently asked questions
Can I take Measles mumps and rubella vaccine live with Siponimod?
MediHelp rates the interaction as major. Measles mumps and rubella vaccine live 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. Live MMR vaccine carries a risk of disseminated vaccine-strain infection in patients on siponimod, and the immune response may be impaired.
How serious is the interaction between Measles mumps and rubella vaccine live 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 during siponimod therapy and for 4 weeks after stopping. Vaccinate at least 4 weeks before starting treatment.
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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