Definition: Antidiuretic hormones released by the NEUROHYPOPHYSIS of all vertebrates (structure varies with species) to regulate water balance and OSMOLARITY. In general, vasopressin is a nonapeptide consisting of a six-amino-acid ring with a cysteine 1 to cysteine 6 disulfide bridge or an octapeptide containing a CYSTINE. All mammals have arginine vasopressin except the pig with a lysine at position 8. Vasopressin, a vasoconstrictor, acts on the KIDNEY COLLECTING DUCTS to increase water reabsorption, increase blood volume and blood pressure.
general or unspecified; prefer specifics; /secret: consider also INAPPROPRIATE ADH SYNDROME
Other names beta-Hypophamine; Antidiuretic Hormones; beta Hypophamine; Vasopressin Monarch Brand; Vasopressin (USP); Vasopressin; Pitressin; Parke-Davis Brand of Vasopressin (USP); Monarch Brand of Vasopressin; American Regent Brand of Vasopressin; American Pharmaceutical Brand of Vasopressin
