19-Noretiocholanolone, also known as 5β-estran-3α-ol-17-one, is a metabolite of nandrolone (19-nortestosterone) and bolandione (19-norandrostenedione) that is formed by 5α-reductase. It is on the list of substances prohibited by the World Anti-Doping Agency since it is a detectable metabolite of nandrolone, an anabolic-androgenic steroid (AAS). Consumption of boar meat, liver, kidneys and heart have been found to increase urinary 19-noretiocholanolone output.
See also Etiocholanolone 19-Norandrosterone 5α-Dihydronandrolone 5α-Dihydronorethisterone
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