Dong Quai × Warfarin

Severity: MODERATE Evidence: probable

Mechanism

Dong quai contains coumarin derivatives that may potentiate warfarin's anticoagulant effect.

Effect

Increased INR; increased bleeding risk

Management

Avoid dong quai with warfarin. Monitor INR closely if used.

Source

Heck AM et al. Am J Health Syst Pharm 2000; Page RL, Lawrence JD. Pharmacotherapy 1999

⚠️ MODERATE INTERACTION: Monitor closely if this combination is used.

Disclaimer

This interaction record is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider before starting or stopping any supplement or medication.