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Mineralocorticoid Receptor Antagonist

Cheng-Hsin General Hospital · FDA-approved active Small molecule

Mineralocorticoid receptor antagonists block aldosterone signaling in the kidneys and other tissues, reducing sodium retention and potassium excretion.

Mineralocorticoid receptor antagonists block aldosterone signaling in the kidneys and other tissues, reducing sodium retention and potassium excretion. Used for Heart failure with reduced ejection fraction, Hypertension, Primary aldosteronism.

At a glance

Generic nameMineralocorticoid Receptor Antagonist
Also known asAldactin, Inspra, spironolactone, eplerenone
SponsorCheng-Hsin General Hospital
Drug classMineralocorticoid receptor antagonist
TargetMineralocorticoid receptor (MR)
ModalitySmall molecule
Therapeutic areaCardiovascular
PhaseFDA-approved

Mechanism of action

These drugs competitively inhibit the mineralocorticoid receptor (MR), preventing aldosterone from binding and activating downstream pathways that promote sodium reabsorption and potassium wasting. By antagonizing MR, they promote sodium and fluid excretion while conserving potassium, leading to reduced blood volume and blood pressure. They are used primarily in heart failure, hypertension, and primary aldosteronism.

Approved indications

Common side effects

Key clinical trials

Primary sources

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