Drug interactions
Dexamethasone-neomycin-polymyxin + Ocrelizumab
Severity: Moderate
Dexamethasone-neomycin-polymyxin and Ocrelizumab: 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
Ocrelizumab depletes B cells and corticosteroids suppress immunity, so combined use can raise infection risk. Systemic high-dose steroids matter most; premedication with dexamethasone for infusion reactions is standard and short.
What this interaction means in plain words
Dexamethasone-neomycin-polymyxin and Ocrelizumab 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; Ocrelizumab belongs to Central Nervous System.
Why it happens
Additive immunosuppression from B-cell depletion and corticosteroid effects.
What to do
Monitor for signs of infection and avoid prolonged high-dose corticosteroids beyond infusion premedication. Treat active infections before dosing.
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 Ocrelizumab
- Adenovirus types 4 and 7 live + Ocrelizumab Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Ocrelizumab Contraindicated
- Measles mumps and rubella vaccine live + Ocrelizumab Contraindicated
- Measles mumps rubella and varicella vaccine live + Ocrelizumab Contraindicated
- Measles vaccine + Ocrelizumab Contraindicated
- Anti-thymocyte + Ocrelizumab Major
Frequently asked questions
Can I take Dexamethasone-neomycin-polymyxin with Ocrelizumab?
MediHelp rates the interaction as moderate. Dexamethasone-neomycin-polymyxin and Ocrelizumab 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. Ocrelizumab depletes B cells and corticosteroids suppress immunity, so combined use can raise infection risk. Systemic high-dose steroids matter most; premedication with dexamethasone for infusion reactions is standard and short.
How serious is the interaction between Dexamethasone-neomycin-polymyxin and Ocrelizumab?
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 signs of infection and avoid prolonged high-dose corticosteroids beyond infusion premedication. Treat active infections before dosing.
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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