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Generic Furosemide
Synonyms: Furoside, Lasix, Froop, Myrosemid, Uritol

Furosemide is a loop diuretic. Loop diuretics act on the Na+-K+-2Cl- symporter (cotransporter) in the thick ascending limb of the loop of Henle to inhibit sodium and chloride reabsorption. This is achieved by competing for the Cl- binding site. Because magnesium and calcium reabsorption in the thick ascending limb is dependent on sodium and chloride concentrations, loop diuretics also inhibit their reabsorption.

By disrupting the reabsorption of these ions, loop diuretics prevent the urine from becoming concentrated and disrupt the generation of a hypertonic renal medulla. Without such a concentrated medulla, water has less of an osmotic driving force to leave the collecting duct system, ultimately resulting in increased urine production. This diuresis leaves less water to be reabsorbed into the blood, resulting in a decrease in blood volume.

Loop diuretics also cause vasodilation of the veins and of the kidney's blood vessels, mechanically causing a decrease in blood pressure.

The collective effects of decreased blood volume and vasodilation decrease blood pressure and ameliorate edema.


For treatment of edema associated with congestive heart failure, cirrhosis of the liver, and renal disease, including the nephrotic syndrome.

For treatment of hypertension alone or in combination with other antihypertensive agents.

How to take:

Adults: The usual initial dose of Furosemide is 20 to 80 mg given as a single dose. Ordinarily a prompt diuresis ensues. If needed, the same dose can be administered 6 to 8 hours later or the dose may be increased. The dose may be raised by 20 or 40 mg and given not sooner than 6 to 8 hours after the previous dose until the desired diuretic effect has been obtained. The individually determined single dose should then be given once or twice daily (eg, at 8 am and 2 pm). The dose of Furosemide may be carefully titrated up to 600 mg/day in patients with clinically severe edematous states.

Edema may be most efficiently and safely mobilized by giving Furosemide on 2 to 4 consecutive days each week.

When doses exceeding 80 mg/day are given for prolonged periods, careful clinical observation and laboratory monitoring are particularly advisable.

Please see label. For more detailed information please consult specialist. Do not take more of Furosemide than it is indicated at the label without consulting your doctor.


Do not violate instructions. It can electrolyte imbalance. Report adverse effect.
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