Epimedin B (EpiB) is the active ingredient with the second highest content in the total flavonoids of Epimedium, Epimedin B in animal experiments and cell experiments. Anti-osteoporosis and bone protection. Epimedium is also known as Xianlingpi, sweet and fragrant, warm in nature and not cold, can benefit essence and qi, has the functions of invigorating the kidney and strengthening yang, relieving cough and relieving asthma, invigorating qi and strengthening the heart, etc. It also has certain effects on preventing aging and forgetfulness. Clinically used for the treatment of neurasthenia, chronic bronchitis in the elderly, emphysema, coronary heart disease, menopausal hypertension, blood diseases, etc.