Hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules.

synonyms: ADH, antidiuretic hormone, vasopressin.

Polish: antydiuretyna, hormon antydiuretyczny, wazopresyna