Epimedium Capsules is commonly known as Epimedium Total Flavonoids Capsules. It has the efficacy of warming kidney yang, strengthening tendons and bones, and is used in primary osteoporosis with kidney yang deficiency. Epimedium Total Flavonoid Capsule belongs to Chinese patent medicine, which is composed of Epimedium as the main ingredient. This Chinese patent medicine has the effect of warming kidney yang, strengthening muscles and bones. It is used in primary osteoporosis with kidney yang deficiency, which is characterized by lumbar spine pain, lumbar and knee soreness and weakness, cold form and cold limbs, weakness of the lower limbs, frequent nocturnal urination, and pale tongue with thin white moss. Its adverse reactions are dry mouth, mild skin rash, mouth sores, sore throat, dryness and heat, tinnitus, palpitation, yellow urine or red and painful urine in a few patients, stop the medicine if necessary and go to the hospital promptly. A small number of patients may experience gastrointestinal reactions such as constipation, diarrhea, abdominal pain, stomach upset. It should be noted that the product is taken for a long time, and during the period of taking the product, it is recommended to go to the hospital for regular follow-up, regular testing of blood biochemical indicators and electrocardiograms. Caution is advised for people with a previous history of sinus bradycardia. Before taking this medicine, it is necessary to be guided by a traditional Chinese medicine doctor for identification of symptoms, and should not take the medicine on its own to avoid adverse consequences to the body.