The mechanism of action of two drugs: 1. Byelzapine is an α-glucosidase inhibitor, which can inhibit α-glucosidase and affect the absorption of carbohydrates, and its hypoglycemic effect is weak, only delaying the absorption of carbohydrates, and the control of postprandial blood sugar is better. The main side effect of Byosaprine is abdominal distension; 2. Metformin is a drug that increases insulin sensitivity, and is the most basic type 2 diabetes glucose-lowering treatment drug, which can increase insulin sensitivity, has a lipid-lowering effect, and can also suppress appetite, and has the effect of reducing weight while lowering sugar.