Synonyms: Spiro[5a-androstane-3,2'-oxazolidin]-3'-yloxy,17b-hydroxy-4',4'-dimethyl- (8CI);(3-Spiro-[2'N-oxyl-3',3'-dimethyloxazolidine])-5-a-androstane-17-b-ol; 17b-Hydroxy-4',4'-dimethylspiro-[5a-androstane-3,2'-oxazolidin]-3'-oxyl; 17b-Hydroxy-4',4'-dimethylspiro[5a-androstan-3,2'-oxazolidin]-3'-yl-oxyl;17b-Hydroxy-5a-androstan-3-one N-oxyl-4,4'-dimethyloxazolidinederiv.; 3-(4',4'-Dimethyloxazolidinyl-N-oxyl)-5a-androstan-17b-ol; 4',4'-Dimethylspiro[5-androstan-17b-ol-3,2'-(1',3'-oxazolidine-3-oxyl)];ASL; NFR 612; [3-Spiro[2'H-oxyl-3',3'-dimethyloxoazolidine]]-5a-androstan-17-b-ol