- Reaction score
- 2,035
I get that but to my knowledge, it still works primarily by receptor blocking otherwise, how is it working when it often increases T? spironolactone resembles chemically some other natural metabolites:Bicalutamide does one thing and that is block androgenic activities, spironolactone on the other hand was not designed to do that.
Spironolactone is a moderate antiandrogen.[113][138][163] That is, it is an antagonist of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT).[113][138][163] By blocking the AR, spironolactone inhibits the effects of androgens in the body.[113][138][163] The antiandrogenic activity of spironolactone is mainly responsible for its therapeutic efficacy in the treatment of androgen-dependent skin and hair conditions like acne, seborrhea, hirsutism, and pattern hair loss and hyperandrogenism in women, precocious puberty in boys with testotoxicosis, and as a component of feminizing hormone therapy for transgender women.[138][165][181] It is also primarily responsible for some of its side effects, like breast tenderness, gynecomastia, feminization, and demasculinization in men.[114][181] Blockade of androgen signaling in the breast disinhibits the actions of estrogens in this tissue.[182] Although useful as an antiandrogen in women, who have low testosterone levels compared to men,[183][184] spironolactone is described as having relatively weak antiandrogenic activity.