Ask the doctor.  I have been taking ginkgo pills for my memory for several years.  I was just diagnosed with atrial fibrillation, and my doctor put me on Coumadin.  Is it okay to keep taking ginkgo?
Goldhaber
Samuel Z
SZ
D000925:Anticoagulants / Q000009:adverse effects*; D001281:Atrial Fibrillation / Q000188:drug therapy*; D004347:Drug Interactions; D020441:Ginkgo biloba / Q000009:adverse effects*; D006801:Humans; D008569:Memory Disorders / Q000188:drug therapy*; D008517:Phytotherapy / Q000009:adverse effects*; D014859:Warfarin / Q000009:adverse effects*
D000925:Anticoagulants; D014859:Warfarin