Save up -80% on Spironolactone

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RX BIN: 015558RX PCN: HTGroup ID: DDN6600Card Holder ID: DDN6600
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2019 Price of Aldactone

$39.3514 tablets/25mg
price without discount in nearest pharmacy. Price may vary.

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Spironolactone volume of distribution

Volume of distribution is 350 to 380 liters. There is minimal metabolism and is mainly excreted unchanged in the urine, with 50% excreted in the urine and 40% fecal excretion within 72 hours after administration of a 20-mg dose. The plasma half-life is 6 to 9 hours.

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2018 Statistics

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Discount Cards 16,000+


Clients Benefit 29%


Total savings $4,735,080

What is Spironolactone

A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827)

Spironolactone mechanism of action

Spironolactone is a specific pharmacologic antagonist of aldosterone, acting primarily through competitive binding of receptors at the aldosterone-dependent sodium-potassium exchange site in the distal convoluted renal tubule. Spironolactone causes increased amounts of sodium and water to be excreted, while potassium is retained. Spironolactone acts both as a diuretic and as an antihypertensive drug by this mechanism. It may be given alone or with other diuretic agents which act more proximally in the renal tubule. Aldosterone interacts with a cytoplasmic mineralocorticoid receptor to enhance the expression of the Na+, K+-ATPase and the Na+ channel involved in a Na+ K+ transport in the distal tubule . Spironolactone bind to this mineralcorticoid receptor, blocking the actions of aldosterone on gene expression. Aldosterone is a hormone; its primary function is to retain sodium and excrete potassium in the kidneys.

Dosage forms of Spironolactone

Spironolactone25mg100 Scored Tablet$37.00
Spironolactone50mg84 Tablet$62.00
Spironolactone100mg100 Scored Tablet$52.00
Spironolactone/Hctz25/25mg100 Scored Tablet$35.00
Spironolactone/Hctz50/50mg100 Scored Tablet$46.00
Aldactone25mg100 Tablet$42.50
Aldactone50mg100 Tablet$64.00
Aldactone100mg90 Tablet$53.00
Aldactazide25/25mg100 Tablet$49.00
Aldactazide50/50mg100 Tablet$71.00

Prescription Generics


International Brands



Espironolactona Spironolactone


G.D. Searle LLC Division of Pfizer Inc

CAS number






Affected organisms

Humans and other mammals

Indication of Spironolactone

Used primarily to treat low-renin hypertension, hypokalemia, and Conn’s syndrome.

Toxicity of Spironolactone

The oral LD sub50 /sub of spironolactone is greater than 1,000 mg/kg in mice, rats, and rabbits. Acute overdosage of spironolactone may be manifested by drowsiness, mental confusion, maculopapular or erythematous rash, nausea, vomiting, dizziness, or diarrhea. Spironolactone has been shown to be a tumorigen in chronic toxicity studies in rats.

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