A diuretic combination is usually a combination of two or more drugs with diuretic effects to provide a better diuretic effect. The diuretic combination usually used is a combination of dopamine and tachyphylaxis. The principle of this effect is that a small dose of dopamine can dilate the renal arteries and promote increased blood flow to the kidneys, and then apply diuretics at this time, the effect will be more obvious. How exactly do you match it? Generally, dopamine 20mg and tachypnea 20-40mg are used, added to 5% glucose 250ml, and the patient is given cardiac monitoring, and the rate of administration is specifically adjusted according to the patient’s blood pressure, heart rate, urine output and edema, which is generally 7-15 drops per minute.