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Concept
Sex-hormonal agent
Summary
NOTOC
A sex-hormonal agent, also known as a sex-hormone receptor modulator, is a type of hormonal agent which specifically modulates the effects of sex hormones and of their biological targets, the sex hormone receptors. The sex hormones include androgens such as testosterone, estrogens such as estradiol, and progestogens such as progesterone. Sex-hormonal agents may be either steroidal or nonsteroidal in chemical structure and may serve to either enhance, inhibit, or have mixed effects on the function of the sex hormone systems.
Sex-hormonal agents are used in medicine for a variety of purposes including hormone therapy (e.g., menopausal hormone therapy, androgen replacement therapy, transgender hormone therapy), antihormone therapy (e.g., androgen deprivation therapy, estrogen deprivation therapy), and hormonal contraception, among others.
Androgen receptor
Androgens and anabolic steroids (AR agonists)
Examples: testosterone, androstanolone (dihydrotestosterone), prasterone (dehydroepiandrosterone), nandrolone (nortestosterone), methyltestosterone, metandienone (methandrostenolone), oxandrolone, stanozolol, danazol
Selective androgen receptor modulators (AR mixed agonists/antagonists)
Examples: enobosarm (ostarine; GTx-024, MK-2866), andarine (GTx-007)
Antiandrogens (AR antagonists)
Examples: cyproterone acetate, chlormadinone acetate, spironolactone, flutamide, bicalutamide, enzalutamide, apalutamide
Estrogen receptor
Estrogens (ER agonists)
Examples: estradiol, estrone, estriol, estetrol, conjugated estrogens (Premarin), ethinylestradiol, diethylstilbestrol (stilbestrol), chlorotrianisene
Selective estrogen receptor modulators (ER mixed agonists/antagonists)
Examples: tamoxifen, clomifene, cyclofenil, raloxifene, toremifene, lasofoxifene, ospemifene, bazedoxifene
Antiestrogens (ER antagonists)
Examples: fulvestrant, ICI-164384, TAS-108 (SR-16234), ZB716 (fulvestrant-3-boronic acid), ethamoxytriphetol (MER-25)
Progesterone receptor
Progestogens and progestins (PR agonists)
Examples: progesterone, medroxyprogesterone acetate, norethisterone (norethindrone), levonorgestrel, drospirenone, dydrogesterone
Selective progesterone receptor modulators (PR mixed agonists/antagonists)
Examples: mifepristone, ulipristal acetate, telapristone (CDB-4124), vilaprisan (BAY-1002670)
Antiprogestogens (PR antagonists)
Examples: aglepristone, onapristone (ZK-89299)
Drugs that indirectly influence sex hormone systems, such as antigonadotropins like GnRH analogues and prolactin releasers (e.
Official source
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