Diuretics include tab diuretics, thiazide diuretics, potassium-preserving diuretics, etc. Different diuretics have different effects and side effects. 1. Collaterals diuretics: the representative drug is furosemide tablets, the main effect is to treat edematous diseases, hypertension, hyperkalemia and hypercalcemia, dilutional hyponatremia, antidiuretic hormone secretion hypersecretion, acute drug toxicity, and prevention of acute renal failure. Common side effects are related to water and electrolyte disorders, including postural hypotension, shock, hypokalemia, hypochloremic alkalosis, hyponatremia, hypocalcemia, thirst, malaise, muscle aches and pains, arrhythmia and other symptoms. 2. Thiazide diuretics: the representative drug is hydrochlorothiazide tablets, the main effect is to treat edematous diseases, hypertension, central or renal uremic syndrome, kidney stones and so on. Common side effects include: water and electrolyte disorders, hyperglycemia, hyperuricemia, allergic reactions, blood leukopenia and so on. 3. Potassium-preserving diuretics: the representative drug is spironolactone tablets, the main effect is to treat edematous diseases, hypertension, primary aldosteronism, and to prevent hypokalemia. Common side effects are hyperkalemia and gastrointestinal reactions such as nausea and vomiting, stomach cramps and diarrhea. If you need to use diuretics, it is recommended that you consult a medical professional and follow the doctor’s instructions for standardized treatment.