Liver protection drugs are clinically classified into the following categories according to their main points of action: 1. drugs that inhibit inflammation, such as glycyrrhetinic acid preparations, silymarin, dicyclol, etc. 2. drugs that protect hepatocyte membranes and inhibit steatosis, such as polyenyl phosphatidylcholine, silymarin, etc. 3. drugs that improve liver microcirculation, such as salvia, etc. 4. drugs that improve liver energy metabolism and have an anti-yellowness effect, such as potassium gluconate. 5.Drugs that promote hepatocyte detoxification, such as glutathione, thioprostenol, glucuronide. 6.Drugs that promote bile secretion, such as ursodeoxycholic acid, adenosylmethionine, etc. 7.Drugs that promote hepatocyte regeneration, such as hepatocyte growth promoter, etc. The above classification is not absolute, and some drugs have crossover functions.