The liver is involved in a number of functions such as detoxification metabolism synthesis. Poor liver function affects metabolism, and taking medications in particular can increase the burden on the liver and cause significant abnormalities in liver function. If you take drugs before, it is best to know the liver function. Normal liver function also requires attention when taking drugs. Some drugs are particularly harmful to the liver, such as tuberculosis drugs, chemotherapy drugs, immune preparations, and oncology drugs have a relatively greater impact on liver function. Liver function tests are important to help understand the current condition and whether taking medications has an increased harmful effect on the body. Liver function needs to be monitored during drug administration to prevent complications, and drug metabolism requires liver function to resolve, both of which complement each other.