Methasterone (Superdrol, methasteron, and methyldrostanolone) is an anabolic steroid that was never marketed through legitimate channels for medicinal purposes. It was brought to market, instead, in a clandestine fashion as a “designer steroid.” Superdrol is known product to contain the 2a,17a-dimethyl-5a-androst-3-one-17b-ol (Methyldrostanolone) steroid. Superdrol is probably the most effective and widely used oral anabolic steroid of the last decade. It is basically Masteron lacking the ester chain. As an oral steroid, it is equipped with a c-17aa modification allowing it to survive the first pass through the liver.