Chemical compound
Bolasterone (INNTooltip International Nonproprietary Name, USANTooltip United States Adopted Name) (brand names Myagen, Methosarb; former developmental code name U-19763), also known as 7α,17α-dimethyltestosterone, is a 17α-alkylated androgen/anabolic steroid (AAS) which is used in veterinary medicine.[2][3] It has close structural similarity to testosterone, and like methyltestosterone has a methyl group at C17α in order to increase oral bioavailability.[2] In addition, it is also 7α-methylated, similar to its 7β-methylated isomer calusterone.[2] The medication has a low to moderate ratio of anabolic to androgenic activity, similar to that of fluoxymesterone.[4]
Bolasterone is on the World Anti-Doping Agency's list of prohibited substances,[5] and is therefore banned from use in most major sports.
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Androgens (incl. AASTooltip anabolic–androgenic steroid) | |
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Antiandrogens | ARTooltip Androgen receptor antagonists | |
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Steroidogenesis inhibitors | |
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Antigonadotropins |
- D2 receptor antagonists (prolactin releasers) (e.g., domperidone, metoclopramide, risperidone, haloperidol, chlorpromazine, sulpiride)
- Estrogens (e.g., bifluranol, diethylstilbestrol, estradiol, estradiol esters, ethinylestradiol, ethinylestradiol sulfonate, paroxypropione)
- GnRH agonists (e.g., leuprorelin)
- GnRH antagonists (e.g., cetrorelix)
- Progestogens (incl., chlormadinone acetate, cyproterone acetate, hydroxyprogesterone caproate, gestonorone caproate, medroxyprogesterone acetate, megestrol acetate)
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Others | |
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ARTooltip Androgen receptor | Agonists | |
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SARMsTooltip Selective androgen receptor modulator | |
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Antagonists | |
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GPRC6A | |
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