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Does Licorice Interact With Prescription Drugs?

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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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5 Comments

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I have read your articles on licorice raising high blood pressure, but you don't state if it is black licorice or both red and black licorice. I have never suffered from high blood pressure and I have enjoyed red licorice once in a while. I don't notice any side effects from eating it. Is it safe?

I am in nursing school and taking a pharm class and we recently had a quiz on anti-coagulation drugs and there was a question that my classmates and I were having questions about.

"A characteristic sign of heparin allergy is the development of" :
a) Rash
B)N/V
c)thromboembolic disease
d)gangrene of extremities

the answer is C
majority pick a

we were trying to figure out exactly why it was that answer we realized that thromboembolic diseases are a rare allergic reaction and when you think allergic reaction, I know I automatically assume rash, hives etc.

Thanks!

Had kidney failure in June 2008. Dec 30th 2009 discharged from dialysis but have been told to stay on strict low potassium diet. Potassium at the moment is 5.5. Feel like trying licorice. Please send me your comments.

PEOPLE'S PHARMACY RESPONSE: WHEN POTASSIUM IS TOO LOW, IT IS ALSO DANGEROUS. IF YOU TRY LICORICE, GE THE OK FROM YOUR HEALTH CARE TEAM FIRST, SO THEY CAN MONITOR YOUR RESPONSE CLOSELY.

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I take coumadin, hgdz, amarodian, digozine, thyroid drugs, etc.

I had quite a bid of licorice the other day and I felt so bad...

My blood pressure was high and my pulse was very slow. I was very closed to go into the hospital.

If it was licorice, I will never eat it again.

My husband takes diovan, toprol @ aggrenox 2x day. Is licorice dangerous?

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