Trenbolone undecanoate
Trenbolone undecanoate, or trenbolone undecylate, is a synthetic and injected anabolic–androgenic steroid (AAS) and a derivative of nandrolone (19-nortestosterone) which was never marketed.[1][2] It is the C17β undecanoate (undecylate) ester and a long-acting prodrug of trenbolone.[1][2] The drug was described by Roussel Uclaf in 1967 and was the first long-lasting ester of trenbolone to be developed.[1][2] Subsequently, trenbolone hexahydrobenzylcarbonate, a roughly equivalent compound, was developed and introduced for use in humans in 1980, though it was discontinued in 1997.You can help Wikipedia by expanding it.This drug article relating to the genito-urinary system is a stub.