Drug interactions
Ocrelizumab + Triamcinolone acetonide injectable
Severity: Moderate
Ocrelizumab and Triamcinolone acetonide injectable: 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
Systemic or high-dose corticosteroids suppress cellular immunity and add to the immunosuppression of ocrelizumab, increasing infection risk. Low-dose local injections carry a smaller risk, but depot triamcinolone can have systemic effects.
What this interaction means in plain words
Ocrelizumab and Triamcinolone acetonide injectable 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 glucocorticoid effects on lymphocytes plus CD20 B-cell depletion.
What to do
Use the lowest effective steroid dose for the shortest time, and monitor for infection. Corticosteroid premedication before ocrelizumab infusions is standard and acceptable.
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 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 Ocrelizumab with Triamcinolone acetonide injectable?
MediHelp rates the interaction as moderate. Ocrelizumab and Triamcinolone acetonide injectable 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. Systemic or high-dose corticosteroids suppress cellular immunity and add to the immunosuppression of ocrelizumab, increasing infection risk. Low-dose local injections carry a smaller risk, but depot triamcinolone can have systemic effects.
How serious is the interaction between Ocrelizumab and Triamcinolone acetonide injectable?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective steroid dose for the shortest time, and monitor for infection. Corticosteroid premedication before ocrelizumab infusions is standard and acceptable.
What other medicines interact with Ocrelizumab?
MediHelp also lists interactions of Ocrelizumab with, for example, Adenovirus types 4 and 7 live, Influenza virus vaccine quadrivalent intranasal, Measles mumps and rubella vaccine live. The full list is on the Ocrelizumab page.
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