Fluoxymesterone, introduced as Halotestin by Upjohn in the 1950s, is a potent oral anabolic steroid with a structure that includes both 9α-fluoro and 11β-hydroxy groups. These chemical features enhance androgen receptor affinity while blocking aromatization. Initially approved for anemia, breast cancer, and androgen replacement, its applications narrowed over time due to hepatotoxicity. Athletes value it for its dry, strength-promoting effects during contest prep, although its strong androgenicity limits use in women and increases risk of side effects in men.
Llewellyn, W. (2017). William Llewellyn's Anabolics.
United States: Molecular Nutrition, LLC.
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Llewellyn, W. (2017). William Llewellyn's Anabolics.
United States: Molecular Nutrition, LLC.
Llewellyn, W. (2017). William Llewellyn's Anabolics.
United States: Molecular Nutrition, LLC.
Llewellyn, W. (2017). William Llewellyn's Anabolics.
United States: Molecular Nutrition, LLC.