Drug interactions
Ocrelizumab + Rozanolixizumab
Severity: Moderate
Ocrelizumab and Rozanolixizumab: 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
Rozanolixizumab blocks the neonatal Fc receptor and lowers circulating IgG. Ocrelizumab is an IgG1 antibody, so its levels and effect could theoretically fall, though the clinical impact is not well characterized.
What this interaction means in plain words
Ocrelizumab and Rozanolixizumab 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 belongs to Central Nervous System; Rozanolixizumab belongs to Miscellaneous.
Why it happens
FcRn blockade by rozanolixizumab accelerates IgG catabolism, potentially lowering ocrelizumab exposure.
What to do
Monitor for reduced ocrelizumab effect, for example MS disease activity and CD19 B-cell counts. If long-term ocrelizumab is essential, consider alternatives to rozanolixizumab.
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
Other interactions of Rozanolixizumab
- Rozanolixizumab + Upadacitinib Major
- Abatacept + Rozanolixizumab Moderate
- Adalimumab + Rozanolixizumab Moderate
- Ado-trastuzumab + Rozanolixizumab Moderate
- Basiliximab + Rozanolixizumab Moderate
- Bevacizumab + Rozanolixizumab Moderate
Frequently asked questions
Can I take Ocrelizumab with Rozanolixizumab?
MediHelp rates the interaction as moderate. Ocrelizumab and Rozanolixizumab 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. Rozanolixizumab blocks the neonatal Fc receptor and lowers circulating IgG. Ocrelizumab is an IgG1 antibody, so its levels and effect could theoretically fall, though the clinical impact is not well characterized.
How serious is the interaction between Ocrelizumab and Rozanolixizumab?
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 reduced ocrelizumab effect, for example MS disease activity and CD19 B-cell counts. If long-term ocrelizumab is essential, consider alternatives to rozanolixizumab.
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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