Some bodybuilders and athletes use trenbolone esters for their muscle-building and otherwise performance-enhancing effects.  Such use is illegal in the United States and many other countries. The DEA classifies trenbolone and its esters as Schedule III controlled substances 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 . 
mg to 20 mg orally in 2 to 4 divided doses
Duration of therapy: 2 to 4 weeks, may be repeated intermittently as indicated.
-Adjunctive therapy to promote weight gain after weight loss following extensive surgery, chronic infections, or severe trauma, and in some patients who without definite pathophysiologic reasons fail to gain or to maintain normal weight
-To offset the protein catabolism associated with prolonged administration of corticosteroids
-For the relief of the bone pain frequently accompanying osteoporosis