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Clinical data
AHFS/ International Drug Names
ATC code
Legal status
Legal status
Synonyms Methenolone; Methylandrostenolone; 1-Methyl-5α-androst-1-en-17β-ol-3-one; 1-Methyl-4,5α-dihydro-δ1-testosterone; 1-Methyl-δ1-DHT
CAS Number
PubChem CID
ECHA InfoCard 100.005.285
Chemical and physical data
Formula C20H30O2
Molar mass 302.46 g·mol−1
3D model (Jmol)

Metenolone (brand names Primobolan, Nibal) or methenolone, also known as methylandrostenolone, as well as 1-methyl-4,5α-dihydro-δ1-testosterone (1-methyl-δ1-DHT) or as 1-methyl-5α-androst-1-en-17β-ol-3-one, is a long-acting anabolic-androgenic steroid (AAS) that is marketed for medical use. It is supplied as metenolone acetate for oral administration and as metenolone enanthate for depot intramuscular injection.[1]

Use in sports[edit]

As an AAS, the use of metenolone is banned from use in sports governed by the World Anti-Doping Agency.[2] Belarusian shot putter Nadzeya Ostapchuk was stripped of her gold medal after testing positive for metenolone at the London 2012 Olympic Games.[3]

The NBA and NBPA also banned the use of methenolone under the Anti-Drug Program. In February 2013, Hedo Türkoğlu of the Orlando Magic was suspended for 20 games without pay by the league after testing positive for methenolone.[4]

In December 2013, Natalia Volgina was stripped of her 2013 Old Mutual Two Oceans Marathon title and received a two-year competition ban, subsequent to a final guilty verdict for using metenolone.[5]

The infamous "duchess" cocktail administered to Russian athletes at the Sochi Winter Olympics consisted of Oxandrolone, Methenolone and Trenbolone.[6]

See also[edit]