Saxagliptin is an inhibitor of potent dipeptidyl peptidase-4, and is used clinically for the treatment of type 2 diabetes mellitus in adults. Saxagliptin selectively inhibits potent dipeptidyl peptidase-4 in the body and regulates blood glucose levels in the body. The drug can reduce glycated hemoglobin and postprandial blood glucose levels without lowering body weight, and has a lower risk of causing hypoglycemia, is well tolerated and safe, and is suitable for adults with type 2 diabetes. When using saxagliptin should also be aware of its side effects, such as upper respiratory tract infections, urinary tract infections, headaches. Also type 1 diabetes, diabetic ketoacidosis, severe renal insufficiency, and severe hypersensitivity reactions to the product are contraindicated. The use of saxagliptin must be under the guidance of a professional doctor, not self-medication.