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Drug interactions

Nevirapine + Quinine

Severity: Moderate

Nevirapine and Quinine: 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

Quinine is cleared mainly by CYP3A4, so nevirapine may reduce quinine levels and risk antimalarial treatment failure. Clinical data are limited.

What this interaction means in plain words

Nevirapine and Quinine 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.

Nevirapine belongs to Anti Virals; Quinine belongs to Anti Parasitic.

Evidence level: Low

Why it happens

Nevirapine induces CYP3A4, increasing quinine metabolism.

What to do

Monitor for malaria treatment response and consider alternative or additional antimalarial therapy if response is poor.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Nevirapine with Quinine?

MediHelp rates the interaction as moderate. Nevirapine and Quinine 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. Quinine is cleared mainly by CYP3A4, so nevirapine may reduce quinine levels and risk antimalarial treatment failure. Clinical data are limited.

How serious is the interaction between Nevirapine and Quinine?

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 malaria treatment response and consider alternative or additional antimalarial therapy if response is poor.

What other medicines interact with Nevirapine?

MediHelp also lists interactions of Nevirapine with, for example, Elbasvir / grazoprevir, Ranolazine, St john's wort. The full list is on the Nevirapine page.

Full monographs, dosing and an interaction checker in the MediHelp app

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