Drug interactions
Dexamethasone + Ocrelizumab
Severity: Moderate
Dexamethasone 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
Dexamethasone is a potent immunosuppressive corticosteroid, and giving it with ocrelizumab raises the risk of infection. A single premedication dose for infusion reactions is common and low risk, whereas repeated or high doses carry more concern.
What this interaction means in plain words
Dexamethasone 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 belongs to Endocrine; Ocrelizumab belongs to Central Nervous System.
Why it happens
Additive immunosuppression from B-cell depletion by ocrelizumab and glucocorticoid-mediated suppression of cellular immunity.
What to do
Limit corticosteroid dose and duration to what is needed, and monitor for infection. Treat suspected infections promptly.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dexamethasone and Ocrelizumab, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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
Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Dexamethasone with Ocrelizumab?
MediHelp rates the interaction as moderate. Dexamethasone 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 is a potent immunosuppressive corticosteroid, and giving it with ocrelizumab raises the risk of infection. A single premedication dose for infusion reactions is common and low risk, whereas repeated or high doses carry more concern.
How serious is the interaction between Dexamethasone 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: Limit corticosteroid dose and duration to what is needed, and monitor for infection. Treat suspected infections promptly.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
