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Spironolactone 25 mg. Spironolactone, sold under the brand name Aldactone among others, is a diuretic medication primarily used to treat fluid build-up due to heart failure, liver scarring, or kidney disease. [4]
[61] [62] In addition, other studies have found that 100 mg/day spironolactone is significantly or near-significantly inferior to 500 mg/day flutamide in improving symptoms of acne and hirsutism. [ 63 ] [ 64 ] [ 65 ] One study compared placebo and dosages of spironolactone of 50, 100, 150, and 200 mg/day in the treatment of acne in women and ...
The objective of this trial was to assess the impact of spironolactone on morbidity and mortality in patients with severe heart failure. Patients were randomized to receive either spironolactone (25 to 50 mg) daily or placebo. Both groups were continued on standard therapy. The primary endpoint was all-cause mortality.
Eplerenone differs from spironolactone in its extensive metabolism, with a short half-life and inactive metabolites. [4] Eplerenone seems to be about 50 to 75% as potent as spironolactone as an antimineralocorticoid. [24] Hence, 25 mg/day spironolactone may be equivalent to approximately 50 mg/day eplerenone. [25]
Spirolactones are a class of functional group in organic chemistry featuring a cyclic ester attached spiro to another ring system. The name is also used to refer to a class of synthetic steroids, called steroid-17α-spirolactones, 17α-spirolactosteroids, or simply 17α-spirolactones, which feature their spirolactone group at the C17α position.
Spironolactone is a prodrug with a short terminal half-life of 1.4 hours. [5] [6] [7] The active metabolites of spironolactone have extended terminal half-lives of 13.8 hours for 7α-TMS, 15.0 hours for 6β-OH-7α-TMS, and 16.5 hours for canrenone, and accordingly, these metabolites are responsible for the therapeutic effects of the drug. [5] [6