Acetate deaminase vasopressin (DDAVP), also known as arginine vasopressin, is a structural analogue of natural arginine vasopressin and a derivative of vasopressin. Its antidiuretic effect is stronger and more persistent than vasopressin, but it does not have vasoconstrictive effects. The drug has minimal side effects and is clinically used for congenital or drug-induced platelet dysfunction, uremia, cirrhosis, and unexplained prolonged bleeding; Can be used to control and prevent bleeding during small surgeries; Central diabetes insipidus, etc. In some cases, this product may even have therapeutic effects on patients with moderate urinary system diseases and is often contraindicated for use in patients with type IIB vascular hemophilia.