Used in medical settings to treat low blood pressure, low cardiac output, and shock, especially in heart failure, septic shock, or after heart surgery. It improves blood flow to vital organs and supports heart function by stimulating dopamine and adrenergic receptors. At lower doses, it increases renal and splanchnic blood flow, helping maintain kidney function. In higher doses, it enhances heart contraction and raises blood pressure through stronger vasoconstriction. Commonly administered intravenously in intensive care units. Also used off-label in diagnostic procedures like echocardiography to assess heart function.