There are no strict rules indicating how many days Furosemide should be taken at most, the amount of time Furosemide tablets need to be taken is generally based on factors such as drug effects, adverse reactions and the patient’s condition. Furosemide tablets is a diuretic, can produce powerful diuretic effect, also can stimulate renin secretion, dilate renal blood vessels as well as increase renal blood flow, can be used to treat heart failure, cirrhosis, acute pulmonary edema, hypertension and other diseases. It is contraindicated in patients with allergy to this drug, hepatic coma, hypokalemia, azotemia and so on. There is no strict rule indicating the maximum number of days to take furosemide, the time that furosemide tablets need to be taken is usually based on factors such as drug effects, adverse reactions and the patient’s condition. If the patient suffers from heart failure, high blood pressure and other diseases that require long-term medication and no significant adverse reactions to the drug, the drug has played a certain therapeutic effect can be long-term medication. After taking furosemide may occur hyponatremia, hypocalcemia, nausea, vomiting, postural hypotension, hematuria, urinary frequency and other adverse reactions. Patients who need to take furosemide tablets should use them under the supervision of a doctor.