Drug interactions
Siponimod + Tagraxofusp
Severity: Moderate
Siponimod and Tagraxofusp: 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
Tagraxofusp is used in blastic plasmacytoid dendritic cell neoplasm and can cause cytopenias and capillary leak syndrome. Siponimod lowers lymphocytes, so combined use may add to infection risk.
What this interaction means in plain words
Siponimod and Tagraxofusp 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; Tagraxofusp belongs to Oncology.
Why it happens
Additive effects on immunity: cytotoxic CD123-directed myelosuppression plus S1P receptor-mediated lymphocyte sequestration.
What to do
Monitor blood counts and for infection during therapy. Reassess whether siponimod should continue during treatment of the malignancy.
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 Tagraxofusp?
MediHelp rates the interaction as moderate. Siponimod and Tagraxofusp 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. Tagraxofusp is used in blastic plasmacytoid dendritic cell neoplasm and can cause cytopenias and capillary leak syndrome. Siponimod lowers lymphocytes, so combined use may add to infection risk.
How serious is the interaction between Siponimod and Tagraxofusp?
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 for infection during therapy. Reassess whether siponimod should continue during treatment of the malignancy.
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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