It is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus).
ADH (antidiuretic hormone): A peptide molecule that is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus). ADH has an antidiuretic action that prevents the production of dilute urine (and so is antidiuretic).  Antidiuretic hormone, also called arginine vasopressin (AVP), is a hormone produced by the hypothalamus in the brain and stored in the posterior pituitary gland at the base of the brain. ADH helps regulate water balance in the body.  Antidiuretic hormone (ADH): A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus). ADH has an antidiuretic action that prevents the production of dilute urine (and so is antidiuretic).  The hormone is stored in and released by the pituitary gland. ADH controls how your body releases and conserves water. When ADH (also called vasopressin) is produced somewhere other than the hypothalamus, the condition is called syndrome of inappropriate antidiuretic hormone (SIADH). In addition to making it harder for your body to release water, SIADH can result in lowered levels of electrolytes like sodium The syndrome of inappropriate antidiuretic hormone secretion or SIADH (other names: Schwartz-Bartter syndrome, SIAD—syndrome of inappropriate antidiuresis) is characterized by excessive release of antidiuretic hormone from the posterior pituitary gland or another source.  Antidiuretic hormone, also known commonly as arginine vasopressin, is a nine amino acid peptide secreted from the posterior pituitary. Within hypothalamic neurons, the hormone is packaged in secretory vesicles with a carrier protein called neurophysin, and both are released upon hormone secretion. The single most important effect of antidiuretic hormone is to conserve body water by reducing the loss of water in urine. A diuretic is an agent that increases the rate of urine formation. Antidiuretic hormone binds to receptors on cells in the collecting ducts of the kidney and promotes reabsorption of water back into the circulation. In the absense of antidiuretic hormone, the collecting ducts are virtually impermiable to water, and it flows out as urine. The single most important effect of antidiuretic hormone is to conserve body water by reducing the loss of water in urine. A diuretic is an agent that increases the rate of urine formation. Antidiuretic hormone (ADH) is released by the. hypothalamus. anterior pituitary. posterior pituitary. kidney. cerebellum. 3. ADH functions to. increase urine volume output and cause blood vessel dilation. increase urine volume output and cause blood vessel constriction.  Vasopressin (Antidiuretic Hormone). Vasopressin (arginine vasopressin, AVP; antidiuretic hormone, ADH) is a peptide hormone formed in the hypothalamus, then transported via axons to, and released from, the posterior pituitary into the blood. AVP has two principle sites of action: the kidney and blood vessels
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where is antidiuretic hormone released from