Mozavaptan is a benzazepine derivative that antagonizes the binding of arginine vasopressin (AVP) to vasopressin receptors located in the liver (V1; IC50 = 1.2 μM) and kidney (V2; IC50 = 14 nM). At 10-100 μg/kg, mozavaptan can inhibit the antidiuretic action of AVP, promoting aquaresis when administered intravenously to rats. The therapeutic potential of mozavaptan in ectopic antidiuretic hormone syndrome, heart failure, and other complications related to hyponatremia has been studied.
