GPT and cirrhosis of liver: ALT elevation is relatively unrelated to the presence of cirrhosis and the length of EBR/GZR treatment.11 Elevation of bilirubin caused by EBR/GZR usually occurs 2 weeks after the drug is taken and usually decreases gradually along the treatment course.11 Bilirubin elevation is not necessarily related to the presence of liver cirrhosis and changes in liver function.2