Oxabolone is a synthetic anabolic-androgenic steroid (AAS) of the nandrolone (19-nortestosterone) group which was never marketed.[1][2][3] It can be formulated as the cipionate ester prodrug oxabolone cipionate, which, in contrast, has been marketed for medical use.[1][2][3]

Clinical data
Other names4-Hydroxy-19-nortestosterone; 4,17β-Dihydroxyestr-4-en-3-one; 19-Norandrost-4-ene-4,17β-diol-3-one
Routes of
Intramuscular injection (as oxabolone cipionate)
Drug classAndrogen; Anabolic steroid
CAS Number
CompTox Dashboard (EPA)
ECHA InfoCard100.022.920 Edit this at Wikidata
Chemical and physical data
Molar mass290.403 g·mol−1
3D model (JSmol)

Oxabolone is on the World Anti-Doping Agency's list of prohibited substances,[4] and is therefore banned from use in most major sports.

The 17α-methylated analogue of oxabolone is methylhydroxynandrolone (4-hydroxy-17α-methyl-19-nortestosterone) and the 17α- and 19-methylated derivative of oxabolone is oxymesterone (4-hydroxy-17α-methyltestosterone).[1][2][3]


  1. ^ a b c J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 908–. ISBN 978-1-4757-2085-3.
  2. ^ a b c Index Nominum 2000: International Drug Directory. Taylor & Francis. 2000. pp. 765–. ISBN 978-3-88763-075-1.
  3. ^ a b c I.K. Morton; Judith M. Hall (6 December 2012). Concise Dictionary of Pharmacological Agents: Properties and Synonyms. Springer Science & Business Media. pp. 211–. ISBN 978-94-011-4439-1.
  4. ^ "The World Anti-Doping Code: The 2012 Prohibited List" (PDF). World Anti-Doping Agency. Archived from the original (PDF) on 2012-05-13. Retrieved 2012-07-17.