Saxagliptin works mainly by lowering blood sugar and is mainly used in the treatment of type 2 diabetes. Its side effects include allergy and hypoglycemia. Saxagliptin is a competitive inhibitor of dipeptidyl peptidase 4, which exerts hypoglycemic effect by decreasing the rate of inactivation of enteric insulin and increasing its blood concentration. It is commonly used in the treatment of type 2 diabetes. It is often used clinically in combination with metformin to help patients with glycemic control on diet and exercise therapy. Its side effects mainly include headache, abdominal pain, nausea, vomiting and nasopharyngitis. It is also important to note that saxagliptin is not generally used in the treatment of type 1 diabetes. It is contraindicated in patients with a history of severe hypersensitivity reaction to the product, diabetic ketoacidosis, and patients with severe renal insufficiency. The use of specific drugs should be under the guidance of a doctor. If there is any discomfort, it is recommended to seek prompt medical attention and treatment.