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).[2][3][4][5][6] Metenolone esters are used mainly in the treatment of anemia due to bone marrow failure.[7] Metenolone acetate is taken by mouth, while metenolone enanthate is given by injection into muscle.[6]
Side effects of metenolone esters include symptoms of masculinization like acne, increased hair growth, voice changes, and increased sexual desire.[6] Metenolone esters are synthetic androgens and anabolic steroids and hence are agonists of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT).[6][8] They have moderate anabolic effects and weak androgenic effects, as well as no estrogenic effects or risk of liver damage.[6][8] Metenolone esters are androgen esters and prodrugs of metenolone in the body.[6]
Metenolone esters were introduced for medical use in the early 1960s.[6] In addition to their medical use, metenolone esters are used to improve physique and performance.[6] The drugs are controlled substances in many countries and so non-medical use is generally illicit.[6] They have mostly been discontinued for medical use and have limited availability.[5][6]
^Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-15.
^Elks J (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 784–. ISBN 978-1-4757-2085-3.
^Index Nominum 2000: International Drug Directory. Taylor & Francis. 2000. pp. 659–660. ISBN 978-3-88763-075-1.
^Morton IK, Hall JM (6 December 2012). Concise Dictionary of Pharmacological Agents: Properties and Synonyms. Springer Science & Business Media. pp. 178–. ISBN 978-94-011-4439-1.
^ ab"List of Androgens and anabolic steroids". Drugs.com.
^ abcdefghijWilliam Llewellyn (2011). Anabolics. Molecular Nutrition Llc. pp. 625–, 633–. ISBN 978-0-9828280-1-4.
^Handelsman DJ (25 February 2015). "Androgen Physiology, Pharmacology, and Abuse". In Jameson JL, De Groot LJ (eds.). Endocrinology: Adult and Pediatric E-Book. Elsevier Health Sciences. pp. 2388–. ISBN 978-0-323-32195-2.
^ abKicman AT (June 2008). "Pharmacology of anabolic steroids". British Journal of Pharmacology. 154 (3): 502–521. doi:10.1038/bjp.2008.165. PMC 2439524. PMID 18500378.
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...
Metenolone enanthate, or methenolone enanthate, sold under the brand names Primobolan Depot and Nibal Injection, is an androgen and anabolic steroid (AAS)...
Metenolone acetate, or methenolone acetate, sold under the brand names Primobolan and Nibal, is an androgen and anabolic steroid (AAS) medication which...
including Arnold Schwarzenegger. Barry Bonds allegedly tested positive with metenolone enanthate in 2000 and 2001. In February 2009, Sports Illustrated reported...
the C1α position. Closely related AAS include metenolone and its esters metenolone acetate and metenolone enanthate. The antiandrogen rosterolone (17α-propylmesterolone)...
Notes Hamdy Abdelwahab The Hammer Heavyweight July 30, 2022 2 years Metenolone and its metabolite USADA July 30, 2024 Jeff Molina El Jefe Flyweight November...
methylandrostenolone, which is another name for a different AAS known as metenolone. Metandienone was introduced and formerly sold primarily under the brand...
Primobolan has no approved prescription use. Also known as methenolone or metenolone enanthate, it is the same steroid that Barry Bonds is alleged to have...
International Weightlifting Federation after testing positive for metenolone and metenolone metabolites. Please note, major results of Bilikis Abiodun Otunla...
October 1997) is a Nigerian weightlifter. In 2019 she tested positive for metenolone and is banned until 2027 by the International Weightlifting Federation...
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