This product is not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration.
Moderate· moderate-evidence
May be possible under supervision — talk to your prescriber or pharmacist before combining.
Reishi may have antiplatelet effects that increase bleeding risk when combined with warfarin.
Ganoderic acids have been shown to inhibit platelet aggregation, adding to warfarin's anticoagulant effect.
Source: Natural Medicines Database · Reviewed April 2026
Reishi + Warfarin (Coumadin): use caution. May be possible under supervision — talk to your prescriber or pharmacist before combining. Reishi may have antiplatelet effects that increase bleeding risk when combined with warfarin.
Ganoderic acids have been shown to inhibit platelet aggregation, adding to warfarin's anticoagulant effect.
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.