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Severe· well-documented
Avoid this combination unless your prescriber explicitly approves it with appropriate monitoring.
Turmeric and curcumin may enhance anticoagulant effects of warfarin, increasing bleeding risk.
Curcumin inhibits platelet aggregation and may inhibit CYP enzymes involved in warfarin metabolism, potentially increasing warfarin levels.
Source: Natural Medicines Database · Reviewed April 2026
Turmeric + Warfarin (Coumadin): high risk. Avoid this combination unless your prescriber explicitly approves it with appropriate monitoring. Turmeric and curcumin may enhance anticoagulant effects of warfarin, increasing bleeding risk.
Curcumin inhibits platelet aggregation and may inhibit CYP enzymes involved in warfarin metabolism, potentially increasing warfarin levels.
Do not stop either abruptly on your own. Talk to your prescriber or pharmacist promptly — bring this page to your appointment.
Educational information only — not medical advice. Always verify with a healthcare professional.