Drug interactions
Quinidine + Turmeric
Severity: Minor
Quinidine and Turmeric: 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
Curcumin in turmeric inhibits CYP3A4 and P-glycoprotein in laboratory studies, which may raise quinidine exposure. Clinical evidence is limited, and effects with culinary amounts are likely negligible.
What this interaction means in plain words
Quinidine and Turmeric have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Curcumin may inhibit CYP3A4 and P-glycoprotein, reducing quinidine clearance.
What to do
Dietary use needs no action. Monitor ECG and quinidine levels in patients taking concentrated turmeric or curcumin supplements.
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
Frequently asked questions
Can I take Quinidine with Turmeric?
MediHelp rates the interaction as minor. Quinidine and Turmeric have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Curcumin in turmeric inhibits CYP3A4 and P-glycoprotein in laboratory studies, which may raise quinidine exposure. Clinical evidence is limited, and effects with culinary amounts are likely negligible.
How serious is the interaction between Quinidine and Turmeric?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Dietary use needs no action. Monitor ECG and quinidine levels in patients taking concentrated turmeric or curcumin supplements.
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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