Drug interactions
Denosumab + Rozanolixizumab
Severity: Moderate
Denosumab 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, reducing IgG recycling and shortening IgG half-life. Denosumab is an IgG2 antibody, so its exposure and antiresorptive effect could theoretically be reduced. Clinical data are lacking.
What this interaction means in plain words
Denosumab 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.
Denosumab belongs to Oncology; Rozanolixizumab belongs to Miscellaneous.
Why it happens
FcRn blockade accelerates IgG catabolism and may lower denosumab concentrations.
What to do
Monitor bone turnover markers and bone density for loss of effect. Consider alternative non-antibody antiresorptive therapy if denosumab is needed long term.
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 Denosumab
- Abatacept + Denosumab Moderate
- Adalimumab + Denosumab Moderate
- Alefacept + Denosumab Moderate
- Alemtuzumab + Denosumab Moderate
- Anakinra + Denosumab Moderate
- Azacitidine + Denosumab Moderate
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 Denosumab with Rozanolixizumab?
MediHelp rates the interaction as moderate. Denosumab 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, reducing IgG recycling and shortening IgG half-life. Denosumab is an IgG2 antibody, so its exposure and antiresorptive effect could theoretically be reduced. Clinical data are lacking.
How serious is the interaction between Denosumab 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 bone turnover markers and bone density for loss of effect. Consider alternative non-antibody antiresorptive therapy if denosumab is needed long term.
What other medicines interact with Denosumab?
MediHelp also lists interactions of Denosumab with, for example, Abatacept, Adalimumab, Alefacept. The full list is on the Denosumab page.
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