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Metenolone, or methenolone, is an androgen and anabolic steroid (AAS) which is used in the form of esters such as metenolone acetate (brand name Primobolan, Nibal) and metenolone enanthate (brand name Primobolan Depot, Nibal Injection). Metenolone esters are used mainly in the treatment of anemia due to bone marrow failure. Metenolone acetate is taken by mouth, while metenolone enanthate is given by injection into muscle. They have moderate anabolic effects and weak androgenic effects, as well as no estrogenic effects or risk of liver damage.
Chemistry
Metenolone, also known as 1-methyl-4,5α-dihydro-δ<sup>1</sup>-testosterone (1-methyl-δ<sup>1</sup>-DHT) or as 1-methyl-5α-androst-1-en-17β-ol-3-one, is a synthetic androstane steroid and derivative of dihydrotestosterone (DHT).
Doping in sports
Metenolone and its esters are banned from use in sports governed by the World Anti-Doping Agency. The NBA and NBPA also banned the use of metenolone and its esters under the Anti-Drug Program. There are known cases of doping in sports with metenolone esters by professional athletes.
References
External links
- Primobolan (methenolone acetate) - William Llewellyn's Anabolic.org
- Primobolan Depot (methenolone enanthate) - William Llewellyn's Anabolic.org