Used primarily in medical settings to manage conditions related to fluid balance and blood pressure. It is effective in treating diabetes insipidus by reducing urine output and increasing water reabsorption in the kidneys. Additionally, it is employed in critical care to manage septic shock by constricting blood vessels and raising blood pressure. It also plays a role in controlling gastrointestinal bleeding by reducing blood flow to the affected area. Its applications extend to certain diagnostic procedures where it helps assess kidney function and the body's ability to concentrate urine.