Some bodybuilders and athletes use trenbolone for its muscle-building and otherwise performance-enhancing effects. [ citation needed ] Such use is illegal in the United States and many other countries. The DEA classifies trenbolone as a Schedule III controlled substance under the Controlled Substances Act .  Trenbolone is classified as a Schedule 4 drug in Canada  and a class C drug with no penalty for personal use or possession in the United Kingdom .  Use or possession of steroids without a prescription is a crime in Australia .  The infamous "duchess" cocktail administered to Russian athletes at the Sochi Winter Olympics consisted of oxandrolone , metenolone , and trenbolone. 
However, in December 2004 the United States the 14-member Food and Drug Administration (FDA) advisory committee, plus voting consultants, for Reproductive Health Drugs unanimously rejected Procter and Gamble's fast-track request for Intrinsa citing concerns about off-label use . In Canada, post-menopausal women have been able to obtain government-approved testosterone treatment since 2002. In Australia, post-menopausal women can use Organon testosterone implants which have to be surgically inserted and last from three to six months. 
Trenbolone acetate ( USAN , BANM ) (brand names Revalor (in combination with estradiol ), Finaplix , Finajet ; former developmental code name RU-1697 ), also known as 19-nor-δ 9,11 -testosterone 17β-acetate or as 19-norandrost-4,9,11-trien-17β-ol-3-one 17β-acetate , is a synthetic , injected anabolic-androgenic steroid (AAS) and derivative of 19-nortestosterone (nandrolone) that is used in veterinary medicine .    It is the C17β acetate ester and a long-acting prodrug of trenbolone (19-nor-δ 9,11 -testosterone).