Q:  How Desmopressin is different from Vasopressin?


Answer: Desmopressin, 1-deamino-8-O-arginine-vasopressin (DDAVP) is a synthetic analogue of arginine vasopressin. It has 10 times the antidiuretic action of vasopressin, but 1500 times less vasoconstrictor action. These modifications make metabolism slower with half-life of 158 min.