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spironolactone + furosemide

Tottori University Hospital · FDA-approved active Small molecule

Spironolactone blocks aldosterone to retain potassium while furosemide inhibits sodium reabsorption to promote diuresis, together providing balanced fluid and electrolyte management.

Spironolactone blocks aldosterone to retain potassium while furosemide inhibits sodium reabsorption to promote diuresis, together providing balanced fluid and electrolyte management. Used for Edema and fluid overload in heart failure, Edema in cirrhosis and renal disease, Hypertension with hypokalemia risk.

At a glance

Generic namespironolactone + furosemide
SponsorTottori University Hospital
Drug classDiuretic combination (potassium-sparing diuretic + loop diuretic)
TargetAldosterone receptor (spironolactone); Na-K-2Cl cotransporter (furosemide)
ModalitySmall molecule
Therapeutic areaCardiovascular
PhaseFDA-approved

Mechanism of action

Spironolactone is a potassium-sparing diuretic that antagonizes aldosterone in the collecting duct, reducing sodium reabsorption and potassium excretion. Furosemide is a loop diuretic that inhibits the Na-K-2Cl cotransporter, producing potent diuresis but causing potassium loss. Combined, they provide synergistic diuretic effect while the potassium-sparing action of spironolactone counterbalances furosemide-induced hypokalemia.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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