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Does Licorice Interact With Prescription Drugs?

Q. Does eating licorice candy interfere with any prescription drugs?

A. Licorice can raise blood pressure and increase potassium loss, so it may interfere with the effectiveness of many blood pressure medications. People taking Lanoxin (digoxin) or Coumadin (warfarin) should probably avoid licorice. Prednisone or diuretics that deplete potassium are also problematic. When in doubt about interactions, check with your pharmacist.

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About the Author
Joe Graedon is a pharmacologist who has dedicated his career to making drug information understandable to consumers. His best-selling book, The People’s Pharmacy, was published in 1976 and led to a syndicated newspaper column, syndicated public radio show and web site. In 2006, Long Island University awarded him an honorary doctorate as “one of the country's leading drug experts for the consumer.”.
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