Drostanolone Enanthate is strictly an underground anabolic androgenic steroid that is based on the discontinued Drostanolone Propionate compound known as Masteron. Masteron is a fairly old anabolic steroid first created in 1959 by Syntex and has been sold under several other brand names such as Masteril, Drolban and Metormon with Masteron remaining the most recognizable.

During the 1970’s and 80’s Masteron enjoyed significant therapeutic success, particularly in the treatment of inoperable breast cancer. Despite its success in cancer treatment and other areas of medicine, in the late 1980’s and early 1990’s Masteron began to disappear from the U.S. and European markets and in modern times is no longer manufactured. Drostanolone is still an FDA approved anabolic steroid, but no U.S. pharmacy manufactures it.