Epimedium has the efficacy of strengthening muscles and bones, tonifying kidney yang and dispelling wind-dampness. It can be used clinically to treat impotence of muscles and bones, numbness and constriction caused by kidney yang deficiency, impotence and spermatorrhea, and wind-dampness paralysis and pain, and it is not suitable for those who have yin deficiency and fire (Yin essence deficiency in the body, and the appearance of hyperactive deficiency and fire). Epimedium is used as medicine after drying the leaves of Epimedium. Epimedium is pungent, sweet and warm in nature, and can enter the liver and kidney meridians. It has the effects of strengthening the muscles and bones, tonifying the kidney yang, and dispelling wind-dampness, and can be used clinically to treat impotence and spermatorrhea, lumbago and leg weakness, mental fatigue, and rheumatism paralysis and pain and other symptoms. Epimedium is usually taken internally in decoction. The adverse reactions of Epimedium are not clear, and those with yin deficiency and fire should not take Epimedium. Drugs need to be used under the guidance of a Chinese medicine practitioner to identify the evidence, and should not be taken blindly on their own to avoid damage.