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As a blood pressure medication, spironolactone is usually prescribed at a dose of 25 milligrams a day. For acne, the dosage is higher: it’s often started at 50 mg and then titrated up to 100 mg ...
High doses of oral corticosteroids ... Spironolactone is used to treat high blood pressure but is also prescribed off-label for treating acne in women. Spironolactone reduces the amount of ...
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The effectiveness of spironolactone in the treatment of both acne and hirsutism appears to be dose-dependent, with higher doses being more effective than lower doses. [ 85 ] [ 96 ] [ 97 ] However, higher doses also have greater side effects, such as menstrual irregularities .
[76] [77] [1] [78] Inhibition of ovulation occurred in about 90% of women at a dose of 0.5 to 2 mg/day and in 100% of women at a dose of 3 mg/day. [79] The total endometrial transformation dose of drospirenone is about 50 mg per cycle, whereas its daily dose is 2 mg for partial transformation and 4 to 6 mg for full transformation.
[1] [37] [126] Spironolactone is an aldosterone antagonist and is a useful acne treatment due to its ability to additionally block the androgen receptor at higher doses. [ 37 ] [ 106 ] Alone or in combination with a birth control pill, spironolactone has shown a 33 to 85% reduction in acne lesions in women. [ 117 ]