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. 
If you planning to buy anabolic steroids online , you must understand about the chemical structure and formula behind the manufacture of steroids to avoid side effects, that's why you should do a post cycle therapy after your steroids cycle . The steroids are synthetic hormones which can enhance the potential of body to stop muscle breakdown and prevent faster growth of muscles. Athletes usually take steroids to improve aggression, speed, stamina and strength. Athletes use steroids to lift heavier weights, run faster, jump higher and improve their power while performing in competitions.