Furosemide is generally not recommended for long-term use, one capsule of furosemide a day may have an effect on the kidneys, such as interstitial nephritis, etc., the specific occurrence of the situation varies from person to person. Furosemide is a commonly used diuretic in clinical practice, suitable for the treatment of edematous disorders, hyperkalemia, hypercalcemia, dilutional hyponatremia, hypertension, antidiuretic hormone hypersecretion, acute drug toxicosis and for the prevention of acute renal failure. There are no clear contraindications to the use of the drug. The drug is generally not recommended for long-term use, and common adverse reactions following administration include postural hypotension, electrolyte disturbances (e.g., low potassium, low chloride, low sodium, low calcium), shock, and muscle aches and pains, malaise, thirst, and cardiac arrhythmias, as well as renal-related adverse reactions such as interstitial nephritis and renal calculi (in the treatment of hypercalcemia) may occur. The exact occurrence varies from person to person. The application of furosemide should be carried out under the guidance of a specialist physician and should not be used without authorization.