Drug interactions
Obinutuzumab + Rozanolixizumab
Severity: Moderate
Obinutuzumab 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, which normally recycles IgG, and may reduce exposure to IgG-based drugs such as obinutuzumab. This could reduce obinutuzumab effectiveness.
What this interaction means in plain words
Obinutuzumab 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.
Obinutuzumab belongs to Oncology; Rozanolixizumab belongs to Miscellaneous.
Why it happens
FcRn blockade accelerates catabolism of IgG monoclonal antibodies, lowering their levels.
What to do
Monitor for reduced obinutuzumab response, such as B-cell depletion or disease control. If long-term obinutuzumab is essential, consider an alternative 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 Obinutuzumab
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 Obinutuzumab with Rozanolixizumab?
MediHelp rates the interaction as moderate. Obinutuzumab 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, which normally recycles IgG, and may reduce exposure to IgG-based drugs such as obinutuzumab. This could reduce obinutuzumab effectiveness.
How serious is the interaction between Obinutuzumab 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 obinutuzumab response, such as B-cell depletion or disease control. If long-term obinutuzumab is essential, consider an alternative to rozanolixizumab.
What other medicines interact with Obinutuzumab?
MediHelp also lists interactions of Obinutuzumab with, for example, Measles mumps and rubella vaccine, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel. The full list is on the Obinutuzumab page.
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