Products That Interfere With Licorice
Licorice Interactions ExplainedThe following sections explain in detail the potentially negative interactions that can occur when licorice is combined with any of the drugs listed above.
Blood Pressure Medications
Licorice can increase blood pressure. As a result, it may decrease the effectiveness of high blood pressure medications. If you have high blood pressure or take blood pressure medications, do not take licorice without your healthcare provider's approval and supervision.
Licorice can cause low blood potassium (known medically as hypokalemia), and combining licorice with diuretics that also decrease blood potassium could cause serious problems. Check with your healthcare provider before combining licorice with a diuretic.
Combining a corticosteroid with licorice could cause problems, such as low blood calcium. It may also increase the risk of side effects of the corticosteroid. If you take a corticosteroid, do not take licorice without your healthcare provider's supervision.
Digoxin (Digitek, Lanoxin)
Licorice can cause low blood potassium, which can be especially dangerous for people taking digoxin. Do not combine digoxin with licorice without your healthcare provider's approval.
Licorice can have both estrogen-like effects and anti-estrogen effects. It could possibly increase the risk of estrogen side effects or make estrogen medications less effective. Check with your healthcare provider before combining licorice with estrogen medications.
Warfarin (Coumadin, Jantoven)
There is some evidence that licorice could decrease the level of warfarin in the blood, perhaps making it less effective and increasing the risk of blood clots. If you take warfarin, check with your healthcare provider before taking licorice.