Nandrolone decanoate

Nandrolone decanoate (USAN, BAN) (brand names Deca-Durabolin, Deca-Durabol, Decaneurabol, Metadec, Retabolil), or nandrolone decylate, also known as 19-nortestosterone 17β-decanoate or 17β-[(1-oxodecyl)oxy]estr-4-en-3-one, is a synthetic androgen and anabolic steroid and a nandrolone ester. It was introduced in 1962. Along with nandrolone phenylpropionate (NPP), nandrolone decanoate is one of the most widely used nandrolone esters, and is marketed in many countries throughout the world, including in the United States, Canada, and United Kingdom. Both nandrolone decanoate and NPP are prodrugs of nandrolone.