Terlipressin is a synthetic vasopressin analog primarily used in the treatment of acute variceal bleeding, hepatorenal syndrome, and septic shock. By acting on V1a receptors, Terlipressin induces vasoconstriction in splanchnic circulation, effectively reducing portal vein pressure and controlling bleeding from esophageal varices. Additionally, Terlipressin helps improve renal perfusion in patients with hepatorenal syndrome, enhancing kidney function. Its unique pharmacological profile makes it a critical drug in emergency and critical care settings.