Documented concern based on cited evidence — not a personalized safety check, not medical advice, and not a decision to combine or avoid. That decision belongs with your prescriber.
Low-grade concern — timing, disclosure, or lab context
Low-grade documented concern. Timing, disclosure, or a lab context decides whether it matters for you.
Mechanism and evidence
A randomized trial in patients with cardiovascular disease found Korean red ginseng did not significantly change INR with warfarin; case-based concerns remain, so the level is low but documented.
Evidence tier: rct
The tier names the strongest cited study design. Some anchors studied the supplement on its own, or a related drug in the same class — in those pairs the grade rests on that evidence plus established pharmacology, as agreed with our medical reviewer.
What to discuss with your prescriber
- Tell your anticoagulation clinic about ginseng.
- Keep INR checks on schedule when anything in your routine changes.