Patients with liver disease should pay attention to the following points when using medications: 1. Clarify the liver function and comorbidities. 2, the use of drugs to fully understand, familiar with its indications and toxic side effects. If adverse drug reactions occur, they usually occur 1-4 weeks after the drug is administered, with fever, rash, pruritus and changes in peripheral blood picture, and some people may also have liver function damage. There are also some late reactions (such as some herbal medicines, etc.) can occur only after 3 months of drug use. 3.In the treatment of liver disease combined with other diseases, do not copy the general patient treatment and dose of drugs, but according to the specific situation, depending on the individual. 4.If the transaminases are found to increase more than 2 times after the medication is administered, and other reasons are excluded, the medication should be stopped or changed to other medications. In addition, the medication for patients with liver disease should be simplified, and there should not be too many types of medication, because most drugs are metabolized and detoxified in the liver, and when suffering from liver disease, the metabolism and clearance of drugs are affected, so the medication should be simplified.