Enestebol

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Enestebol is a synthetic androgen and anabolic steroid (AAS) which was never marketed. It is also known as 17α-ethyl-19-nortestosterone or as 17α-ethylestr-4-en-17β-ol-3-one, and is a 17α-alkylated derivative of 19-nortestosterone (nandrolone).

History[edit | edit source]

Enestebol was first described in the scientific literature in 1966. It was developed by the pharmaceutical company Organon, but was never marketed.

Pharmacology[edit | edit source]

As an AAS, enestebol is a agonist of the androgen receptor (AR), similarly to androgens like testosterone and dihydrotestosterone (DHT). It has strong anabolic effects and weak androgenic effects, which give it a favorable anabolic-to-androgenic ratio.

Chemistry[edit | edit source]

Enestebol, also known as 17α-ethyl-19-nortestosterone or as 17α-ethylestr-4-en-17β-ol-3-one, is a synthetic estrane steroid and a derivative of testosterone. It is more specifically a derivative of 19-nortestosterone (nandrolone) and is a member of the 17α-alkylated family of AAS.

See also[edit | edit source]

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Contributors: Prab R. Tumpati, MD