Drug interactions
Moxetumomab pasudotox + Siponimod
Severity: Moderate
Moxetumomab pasudotox 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
Moxetumomab pasudotox is a CD22-directed cytotoxin used in hairy cell leukaemia that can cause cytopenias. Siponimod may add to immune compromise, though evidence is theoretical.
What this interaction means in plain words
Moxetumomab pasudotox 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 B-cell depletion and S1P-receptor-mediated lymphocyte sequestration.
What to do
Monitor blood counts and infection signs during therapy. Consider interrupting siponimod during treatment cycles.
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 Moxetumomab pasudotox with Siponimod?
MediHelp rates the interaction as moderate. Moxetumomab pasudotox 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. Moxetumomab pasudotox is a CD22-directed cytotoxin used in hairy cell leukaemia that can cause cytopenias. Siponimod may add to immune compromise, though evidence is theoretical.
How serious is the interaction between Moxetumomab pasudotox 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 blood counts and infection signs during therapy. Consider interrupting siponimod during treatment cycles.
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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