The recovery time of drug-related liver injury is related to the degree and type of injury and the patient’s physical condition. Drug-related liver injury without clinical symptoms can be recovered about 1 week after stopping the drug. Drug-related liver injury with mild symptoms and mildly elevated transaminases and bilirubin can gradually recover about 1 month after the application of liver-protective and anti-yellowing drugs. Those who cause cholestatic hepatitis can recover in 6-10 weeks. The recovery time for chronic cholestatic hepatitis is at least 3 months. Those causing acute liver failure are very difficult to treat and may endanger the patient’s life. Patients who suffer from chronic liver failure, which may require a liver transplant, have a recovery time of six months to one year, or even longer. Patients taking drugs with more severe liver damage should review their liver function regularly, take them as prescribed, and stop them promptly after liver damage occurs or switch to drugs that are less damaging to the liver.