Licorice Extract Side Effects

People with high blood pressure, liver disease, heart disease, gallbladder disease, kidney disease, adrenal tumors, chronic alcohol abuse and diabetes should not use licorice products unless under a doctor's supervision. Never take licorice extract if you have an infection or are just getting over one. Wait until you are sure the infection is cleared and then start licorice at a lower dose, ramping up to full dose over at least one week.

Licorice should never be used during pregnancy or if you trying to get pregnant or might get pregnant!

Do not habitually use diuretics or laxatives while taking licorice extract. Licorice extract can cause fluid retenion. Never use diuretics to correct this problem, rather discontinue licorice until the excessive fluid is lost.

Caution should also be exercised when taking licorice extract within 12 hours of steriods such as hydrocortisone, prednisone, prednisolone, cortisone, and florinef.

People using antibiotics should be aware that glycyrrhizic acid in licorice is converted to its active metabolite by bacteria in the intestines. Anything that kills this bacteria can alter metabolism and reduce the effect of licorice.

If you take licorice extract while taking estrogen be aware that the herb contains phytoestrogens which bind to many of the same estrogen receptors and may increase the effects of the prescription. You might find that you need a lower estrogen dose while also using licorice extract.

Grapefruit and grapefruit extracts can potentiate herb's effects and increase sodium retention because naringin also inactivates 11-beta HSD-2. If you like eating grapefruit, cut back on the licorice.

Testosterone injections also inhibit 11-beta HSD and can potentiate the effect of licorice.