Methylclostebol, also known as 4-chloro-17α-methyltestosterone or as 4-chloro-17α-methylandrost-4-en-17β-ol-3-one, is a synthetic, orally active anabolic-androgenic steroid (AAS) and designer steroid that has been sold on the Internet as a "

dietary supplement A dietary supplement is a manufactured product intended to supplement a person's diet by taking a pill (pharmacy), pill, capsule (pharmacy), capsule, tablet (pharmacy), tablet, powder, or liquid. A supplement can provide nutrients eithe ...

", but it has never been studied for medical use. It is the 17α-alkylated variant of clostebol (4-chlorotestosterone). Rahnema, Crosnoe, and Kim (2015) reported that German athletes used methylclostebol as a performance enhancing drug in the 1960s and 1970s, but this has not been substantiated. The compound is listed as a banned anabolic agent by the

World Anti-Doping Agency The World Anti-Doping Agency (WADA; , AMA) is an international organization co-founded by the governments of over 140 nations along with the International Olympic Committee based in Canada to promote, coordinate, and monitor the fight against d ...

References

{{Androgen receptor modulators Anabolic–androgenic steroids Androstanes Designer drugs Organochlorides

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