Drug interactions
Ixekizumab + Quinidine
Severity: Minor
Ixekizumab and Quinidine: minor 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
Chronic inflammation can suppress CYP450 enzymes, and control of inflammation with IL-17A blockade may restore their activity. Quinidine has a narrow therapeutic index, so changes in its metabolism could matter. The effect is theoretical and probably small.
What this interaction means in plain words
Ixekizumab and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Ixekizumab belongs to Miscellaneous; Quinidine belongs to Anti Parasitic.
Why it happens
Cytokine normalization after IL-17A inhibition may restore CYP3A4 activity and modestly reduce quinidine exposure.
What to do
When ixekizumab is started or stopped, check the quinidine response, ECG and serum concentration if clinically indicated. Adjust the quinidine dose only if the response or level changes.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Quinidine
- Adagrasib + Quinidine Contraindicated
- Arsenic trioxide + Quinidine Contraindicated
- Artemether / lumefantrine + Quinidine Contraindicated
- Chloroquine + Quinidine Contraindicated
- Dofetilide + Quinidine Contraindicated
- Dronedarone + Quinidine Contraindicated
Other interactions of Ixekizumab
- Ixekizumab + Measles mumps and rubella vaccine Major
- Ixekizumab + Upadacitinib Major
- Ifosfamide + Ixekizumab Moderate
- Ixekizumab + Lomustine Moderate
- Carbamazepine + Ixekizumab Minor
- Cyclosporin + Ixekizumab Minor
Frequently asked questions
Can I take Ixekizumab with Quinidine?
MediHelp rates the interaction as minor. Ixekizumab and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Chronic inflammation can suppress CYP450 enzymes, and control of inflammation with IL-17A blockade may restore their activity. Quinidine has a narrow therapeutic index, so changes in its metabolism could matter. The effect is theoretical and probably small.
How serious is the interaction between Ixekizumab and Quinidine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: When ixekizumab is started or stopped, check the quinidine response, ECG and serum concentration if clinically indicated. Adjust the quinidine dose only if the response or level changes.
What other medicines interact with Quinidine?
MediHelp also lists interactions of Quinidine with, for example, Adagrasib, Arsenic trioxide, Artemether / lumefantrine. The full list is on the Quinidine page.
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