Harvard Heart Letter

Ask the doctor: Is it safe to take ginkgo with warfarin?

The Heart Letter welcomes Dr. Samuel Z. Goldhaber to the editorial board. Dr. Goldhaber is Professor of Medicine at Harvard Medical School and Director of the Venous Thromboembolism Research Group at Brigham and Women's Hospital. He is a national leader in the prevention and treatment of deep-vein thrombosis, pulmonary embolism, and other blood clotting disorders.

Q. 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?

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