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. 
Trenbolone endorses red blood cell fabrications and boosts the speed of glycogen replacement, significantly improving resurgence. Resembling nearly all steroids , trenbolones effects are dosage dependent with elevated dosages having the maximum effects on body composition and muscle. Mental changes are an infamous side effect of trenbolone use , androgens boost chemicals in the brain that encourage violent behavior, which can be helpful for some athletes desiring to progress speed and control. Illegal users of trenbolone acetate have described a number of side effects. These consist of high blood pressure and insomnia, also noticeable hostility and an augmented sex drive. Some users have had nighttime sweats and coughing incidents.