Compound enzymes are used to improve lack of appetite, indigestion and other hazards such as mild diarrhea and mildly elevated glutamine transaminase. 1. Action: complex digestive enzymes consist of pepsin, trypsin, pancreatic amylase and pancreatic lipase. Pepsin hydrolyzes proteins into peptones, and trypsin further hydrolyzes peptones into short peptides and so on. Pancreatic amylase and pancreatic lipase, on the other hand, have the role of digesting starch and fat. It improves lack of appetite, indigestion etc. 2. Harm: Mild diarrhea and mild AST elevation may occur during the use of the drug, which can be recovered by itself. Early stage of acute pancreatitis and those who are allergic to pig protein products are prohibited. Compound Digestive Enzymes should be used under medical supervision, and should not be used privately.