Can be used for treating impotence, soreness of waist and knees, urinary incontinence and infertility caused by kidney-yang deficiency. It can also be used to treat numbness, muscle contracture, weakness and paralysis of limbs caused by rheumatic joint pain. It can also be used to treat cough and asthma caused by lung deficiency. Modern research has proved that Epimedium can dilate peripheral blood vessels, and has the functions of lowering blood pressure, lowering blood sugar, resisting inflammation, improving immune function and increasing white blood cells.