Drug interactions
Dexamethasone-neomycin-polymyxin + Ponesimod
Severity: Moderate
Dexamethasone-neomycin-polymyxin and Ponesimod: 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
Ponesimod reduces circulating lymphocytes and corticosteroids suppress immune responses, so infection risk may rise. Effects persist for weeks after ponesimod stops.
What this interaction means in plain words
Dexamethasone-neomycin-polymyxin and Ponesimod 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.
Dexamethasone-neomycin-polymyxin belongs to Anti Bacterial; Ponesimod belongs to Central Nervous System.
Why it happens
Additive immunosuppression from lymphocyte sequestration and corticosteroid effects.
What to do
Monitor for infections during and for weeks after therapy. Limit prolonged systemic corticosteroid use.
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 Dexamethasone-neomycin-polymyxin
- Dexamethasone-neomycin-polymyxin + Ketorolac Major
- Dexamethasone-neomycin-polymyxin + Lapatinib Major
- Dexamethasone-neomycin-polymyxin + Levofloxacin Major
- Dexamethasone-neomycin-polymyxin + Mifepristone Major
- Dexamethasone-neomycin-polymyxin + Moxifloxacin Major
- Aldesleukin + Dexamethasone-neomycin-polymyxin Moderate
Other interactions of Ponesimod
- Fingolimod + Ponesimod Contraindicated
- Ponesimod + Siponimod Contraindicated
- Amiodarone + Ponesimod Major
- Amisulpride + Ponesimod Major
- Anagrelide + Ponesimod Major
- Anti-thymocyte + Ponesimod Major
Frequently asked questions
Can I take Dexamethasone-neomycin-polymyxin with Ponesimod?
MediHelp rates the interaction as moderate. Dexamethasone-neomycin-polymyxin and Ponesimod 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. Ponesimod reduces circulating lymphocytes and corticosteroids suppress immune responses, so infection risk may rise. Effects persist for weeks after ponesimod stops.
How serious is the interaction between Dexamethasone-neomycin-polymyxin and Ponesimod?
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 infections during and for weeks after therapy. Limit prolonged systemic corticosteroid use.
What other medicines interact with Dexamethasone-neomycin-polymyxin?
MediHelp also lists interactions of Dexamethasone-neomycin-polymyxin with, for example, Ketorolac, Lapatinib, Levofloxacin. The full list is on the Dexamethasone-neomycin-polymyxin page.
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