How many spironolactone tablets you take a day depends on your specific condition, usually 1-2 tablets a day. Spironolactone is a diuretic drug. Patients with edema need to apply diuretics in order to expel excess water from the body and achieve the purpose of reducing swelling, and the more commonly used diuretics are furosemide and hydrochlorothiazide, of which furosemide is also a stronger diuretic and hydrochlorothiazide is a more moderate diuretic. Although these drugs can achieve the effect of reducing swelling when applied, they are also prone to hypokalemia. Hypokalemia is more dangerous and can easily complicate malignant arrhythmias and lead to sudden death of the patient, which can be avoided by applying spironolactone tablets at the same time. The diuretic effect of spironolactone tablets is weak, but the potassium preservation effect is strong, so it is mainly used for potassium preservation treatment in clinical practice. It should be noted that the application of the above diuretics is only a symptomatic treatment, if we want to solve the root cause of the problem, we need to find the underlying cause and deal with it from the etiology.