Drug interactions
Galcanezumab + Rozanolixizumab
Severity: Moderate
Galcanezumab 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 protects IgG from lysosomal degradation. Galcanezumab is an IgG4 antibody, so its concentrations may fall and its migraine-preventive effect may diminish. Clinical data for this combination are lacking.
What this interaction means in plain words
Galcanezumab 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.
Galcanezumab belongs to Central Nervous System; Rozanolixizumab belongs to Miscellaneous.
Why it happens
FcRn blockade by rozanolixizumab shortens the half-life of IgG-based antibodies such as galcanezumab.
What to do
Monitor migraine control and consider a non-antibody preventive if efficacy declines. Reassess the need for galcanezumab while rozanolixizumab cycles are given.
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 Galcanezumab
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 Galcanezumab with Rozanolixizumab?
MediHelp rates the interaction as moderate. Galcanezumab 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 protects IgG from lysosomal degradation. Galcanezumab is an IgG4 antibody, so its concentrations may fall and its migraine-preventive effect may diminish. Clinical data for this combination are lacking.
How serious is the interaction between Galcanezumab 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 migraine control and consider a non-antibody preventive if efficacy declines. Reassess the need for galcanezumab while rozanolixizumab cycles are given.
What other medicines interact with Galcanezumab?
MediHelp also lists interactions of Galcanezumab with, for example, Efgartigimod / hyaluronidase sc, Efgartigimod alfa. The full list is on the Galcanezumab page.
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