Drug interactions
Anthrax vaccine adsorbed + Siponimod
Severity: Moderate
Anthrax vaccine adsorbed 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
Anthrax vaccine adsorbed is non-live, so there is no risk of vaccine-strain infection. Siponimod may still reduce the antibody response, which could leave the patient with inadequate protection.
What this interaction means in plain words
Anthrax vaccine adsorbed 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
S1P receptor modulation reduces circulating lymphocytes and may blunt vaccine-induced immune responses.
What to do
Where possible, give the vaccine at least 1 week before starting siponimod. If it is given during treatment, consider checking antibody response and review the need for further doses.
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 Anthrax vaccine adsorbed with Siponimod?
MediHelp rates the interaction as moderate. Anthrax vaccine adsorbed 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. Anthrax vaccine adsorbed is non-live, so there is no risk of vaccine-strain infection. Siponimod may still reduce the antibody response, which could leave the patient with inadequate protection.
How serious is the interaction between Anthrax vaccine adsorbed 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: Where possible, give the vaccine at least 1 week before starting siponimod. If it is given during treatment, consider checking antibody response and review the need for further doses.
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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