The principle of taking medicine for bad kidney is to improve the general condition of patients, such as correcting anemia and maintaining a stable internal environment. The best drugs include the following: First, to improve kidney circulation, such as Haikun Kidney Hi capsule, Bai Ling capsule, Jin Shui Bao, which can play the role of kidney preservation and detoxification. Second, medicinal charcoal plays the role of adsorbing toxins, so other drugs are recommended to be taken orally at 2-hour intervals. Sodium bicarbonate can play a role in correcting acidosis and at the same time can reduce the role of uric acid. More than 50% of people with bad kidney have disorders of calcium and phosphorus metabolism, so it is recommended to take calcium carbonate and osteoporotic triol for symptomatic treatment. It also needs subcutaneous injection of erythropoietin etc. to correct anemia, because of poor kidney, insufficient renal secretion of erythropoietin and insufficient iron absorption, you can take oral ferrous succinate etc. In late stage, active renal replacement therapy is recommended, such as hemodialysis, hemofiltration, hemoperitoneum dialysis, and renal transplantation can be performed when conditions permit.