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Due to its progestogenic (and by extension antigonadotropic) activity, CPA is able to suppress circulating testosterone levels by 70 to 80% in men at high dosages. [ 25 ] [ 94 ] In contrast, NSAAs increase testosterone levels by up to 2-fold via blockade of the AR , a difference that is due to their lack of concomitant antigonadotropic action ...
[30] [70] [71] [72] Although spironolactone is said to be a relatively weak inhibitor of 17α-hydroxylase and 17,20-lyase, [73] [30] at least compared to more potent steroidogenesis inhibitors like ketoconazole and abiraterone acetate (which can reduce testosterone concentrations to castrate levels), this action may contribute to a significant ...
The trial was stopped early because the beneficial effect of spironolactone on all-cause death exceeded the prespecified discontinuation requirements. Spironolactone reduced the risk of death by 30% compared to placebo. Additionally, there was a 35% reduction in the risk of hospitalization for worsening heart failure in the spironolactone group.
1957: The steroidal antiandrogen spironolactone is first synthesized [219] 1960: Spironolactone is first introduced for medical use, as an antimineralocorticoid [219] 1961: The steroidal antiandrogen cyproterone acetate is first synthesized [220] 1962: Spironolactone is first reported to produce gynecomastia in men [219] [221]
[86] [111] For example, about 20% of women experienced menstrual irregularities with 50 to 100 mg/day spironolactone, whereas about 70% experienced menstrual irregularities at 200 mg/day. [63] Most women taking moderate doses of spironolactone develop amenorrhea, and normal menstruation usually returns within two months of discontinuation. [111]
A nonsteroidal antiandrogen (NSAA) is an antiandrogen with a nonsteroidal chemical structure. [1] [2] [3] They are typically selective and full or silent antagonists of the androgen receptor (AR) and act by directly blocking the effects of androgens like testosterone and dihydrotestosterone (DHT).
Upon analysis, scientists found that participants who stayed on standard statin treatment for their lifetime increased their quality-adjusted life years by 0.24-0.70, and those on higher-intensity ...
Bicalutamide, sold under the brand name Casodex among others, is an antiandrogen medication that is primarily used to treat prostate cancer. [10] It is typically used together with a gonadotropin-releasing hormone (GnRH) analogue or surgical removal of the testicles to treat metastatic prostate cancer (mPC).