It is created as a byproduct of nandrolone via the 5-alpha reductase enzyme and is on the list of substances prohibited by the World Anti-Doping Agency since it is a detectable metabolite of nandrolone which is an anabolic steroid.
On March 31, 2011, Bagio was tested positive for the steroid called 19-Norandrosterone, during a national race walking competition in Brazil, a year before.