Testosterone enanthate ( USAN , BAN ) (brand names Delatestryl , Testostroval , Testro LA , Andro LA , Durathate , Everone , Testrin , Andropository ), or testosterone heptanoate , is an androgen and anabolic steroid and a testosterone ester .    Along with testosterone cypionate and testosterone propionate , it is one of the most widely used testosterone esters.  Testosterone enanthate was first introduced in 1952.  Administered via intramuscular injection , it is the most widely used form of testosterone in androgen replacement therapy . 
Finally, it must be mentioned that any particular ester of Trenbolone does not require a similarly estered anabolic steroid to be stacked with it (for example, Trenbolone Enanthate stacked with Testosterone Enanthate). It is a perfectly fine and safe practice to be able to combine, for example, Trenbolone Acetate and Testosterone Enanthate (instead of Testosterone Propionate ) in Trenbolone cycles. These combinations present no problems and actually work well, but every individual curious about these combinations must always be aware that proper timing, half-life, and injection frequency varies with each of these compounds. The only reason why many individuals prefer to stack Testosterone Enanthate with Trenbolone Enanthate , for example, is because of the convenience aspect and ease of administration frequency and timing (as both compounds are identical in half-life).