Primobolan is an anabolic steroid also known as methenolone. It was developed in 1960’s in both oral and injectable form. At beginning its brand name was Nibal and was used during treatments of muscle wasting and anemia. Not long after, Schering took over and rebranded to Primobolan. They cased the production in USA and continued only in Europe. This steroid is weak for promoting huge muscle gains..