of Superdrol 10mg is an oral anabolic androgenic steroid derived from the steroid, methasterone. It is second in popularity only to the injectable steroid Dianabol. Superdrol is known to produce rapid gains in strength and size. Unlike many oral steroids, it is not significantly liver toxic. It also does not convert to estrogen, so users do not experience negative side effects such as water retention, gynecomastia and fat accumulation.