Methenolone is an anabolic androgenic steroid that was first released in 1962 by Squibb under the trade name Nibal (oral) and Nibal Depot (injectable). This was a very short-lived product on the U.S. market and by the mid-1960's the German pharmaceutical powerhouse Schering would own all rights to the Methenolone hormone. Through Schering the hormone would be released as Primobolan (oral) and Primobolan Depot (injectable). The injectable Depot version will be our focus here. For information on oral Primobolan, please see the Primobolan profile.