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A 26-year-old female asked:

Will ginkgo biloba affect the effectiveness of the contraceptive pill and is it an herb that will counteract with a low dose estrogen pill?

1 doctor answer1 doctor weighed in
Dr. David Masiello
Hematology and Oncology 18 years experience
NO: There are no known interactions with Ginko and OCP or low dose estrogen and in a test tube the main components of ginko do not alter the CYp3a4 system of drug metabolism in the liver, although it has not been studied in people It dose interact with anti-coagulants such as coumadin, (warfarin) asprin, etc.. and may increase the risk of bleeding with those medications.

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Last updated Sep 28, 2016

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