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 .  The infamous "duchess" cocktail administered to Russian athletes at the Sochi Winter Olympics consisted of oxandrolone , a metenolone ester, and a trenbolone ester. 
On the black market, enanthate is probably the most commonly found ester of testosterone available. Currently the most popular products include the 200mg/ml Mexican generics from the veterinary firms Brovel and Tornel. Both come packaged in 10 ml vials, and offer excellent value for the amount of steroid included. Loeffler has offered a striking new product recently, a 250mg/ml enanthate in a similarly sized vial. Although not the highest dose of this steroid ever produced, it is certainly the only legitimate product containing 250m1 to be found in a container of this size. Primoteston from Mexico, Testoviron® from Schering in Spain and the French product Testosterone Heptylate Theramex also circulate inside the . as well. Heptylate is not a unique ester of testosterone as described by other writers, as in fact it is simply another word for enanthate. Occasionally amps from other regions surface as well, which is to be expected with this ester as it is more widely produced than any other. The actually number of enanthate products made would be difficult to catalog here, and any comprehensive list would be almost impossible to keep current. The typical US black market price for a single 250mg ampule regardless of manufacturer is usually around $10-15.
CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.