Methylclostebol Explained

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",^{[1] [2]} but it has never been studied for medical use.^[3] It is the 17α-alkylated variant of clostebol (4-chlorotestosterone).^[4]

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.^[3] The compound is listed as a banned anabolic agent by the World Anti-Doping Agency.^[5]

See also

• Chlorodehydromethylandrostenediol
• Chlorodehydromethyltestosterone
• Chloromethylandrostenediol
• Oxymesterone

Notes and References

1. Rahnema CD, Crosnoe LE, Kim ED . Designer steroids - over-the-counter supplements and their androgenic component: review of an increasing problem . Andrology . 3 . 2 . 150–155 . March 2015 . 25684733 . 10.1111/andr.307 . 6999218 . free .
2. Pope HG, Wood RI, Rogol A, Nyberg F, Bowers L, Bhasin S . Adverse health consequences of performance-enhancing drugs: an Endocrine Society scientific statement . Endocrine Reviews . 35 . 3 . 341–375 . June 2014 . 24423981 . 4026349 . 10.1210/er.2013-1058 .
3. Rahnema CD, Crosnoe LE, Kim ED . Designer steroids - over-the-counter supplements and their androgenic component: review of an increasing problem . Andrology . 3 . 2 . 150–155 . March 2015 . 25684733 . 10.1111/andr.307 . 6999218 . free .
4. Book: Lootens L, Van Eenoo P, Pozo Mendoza OJ, Meulemans P, Leroux-Roels G, Delbeke F . Application of in vivo urinary steroid detection in uPA+/+-SCID chimeric mice. . 28th Cologne workshop on Dope Analysis (Manfred Donike workshop) . 2010 . 18 . 52–61 . https://biblio.ugent.be/publication/4094653/file/4094654 .
5. Web site: World Anti-Doping Code: International Standard Prohibited List . January 2017.