Jan 14, 2016 · What is Trenbolone acetate. Officially, trenbolone acetate is an anabolic androgenic steroid of veterinarian grade. It was originally injected into cattle to enhance the lean tissue prior to slaughtering. However, over time, the compound was modified for human use taking into account the rapid growth of lean tissue in livestock.. More widely known as Dienedione, Trenadrol converts into the orally active androgen Dienolone, popularly referred to as Tren. Neither Trenadrol nor Dienolone are related to the steroid Trenbolone though despite its Tren nickname. Instead, it seems to have garnered this nickname due to the relatively similar effects to trenbolone. Furazadrol.