Dobutamine injection is a drug commonly used in clinical practice. Its main function is to relax blood vessels and increase systolic and pulse pressure, so it is mainly used in clinical practice for various kinds of shock, such as infectious or toxic shock, cardiogenic shock, and hemorrhagic shock, which can be administered intravenously with dobutamine, and the rate of intravenous drip is determined according to the condition. During the IV drip, blood volume is assessed, blood pressure is continuously measured, and the dose of medication is adjusted according to changes in blood pressure. In addition, dobutamine injection can also diastole the renal blood vessels, increase renal blood flow and glomerular filtration rate, which has the effect of sodium excretion and diuresis, and can be used in combination with diuretics to treat acute renal failure.