How long it will take for GATL 200 U/L to decrease depends on a number of factors such as the severity of the disease and the patient’s adherence to the treatment. If the disease is mild and standardized with the doctor’s treatment faster, usually can be reduced in 1~2 weeks. Elevated alanine aminotransferase can be seen in viral hepatitis, alcoholic hepatitis, cirrhosis, fatty liver disease, etc. Among them, viral hepatitis B can be treated with antiviral drugs such as entecavir as prescribed by the doctor, and fatty liver disease needs to stop drinking, control diet, and with dyslipidemia can be treated with drugs such as fenofibrate. For patients with mild disease, after standardized treatment, it is possible to reduce the alanine aminotransferase within one to two weeks. Patients with elevated ASTE are advised to go to the hospital and cooperate with the doctor for active treatment.