if it is black licorice
Liquorice affects the body's endocrine system as it contains isoflavones (phytoestrogens). It can lower the amount of serum testosterone,[8] but whether it affects the amount of free testosterone is unclear. Large doses of glycyrrhizinic acid and glycyrrhetinic acid in liquorice extract can lead to hypokalemia and serious increases in blood pressure, a syndrome known as apparent mineralocorticoid excess.