AVP and diabetes insipidus: It is also used in treatment of DI; Arginine vasopressin disorder, formerly known as diabetes insipidus (DI), is a disease process that results in either decreased release of antidiuretic hormone (Anti Diuretic Hormone (ADH), also known as vasopressin or Arginine Vasopressin (AVP) or reduced response to ADH, causing electrolyte imbalances.