Due to its nocturnal reformation, researchers have referred to trenbolone as the "vampire steroid". Use or possession of steroids without a prescription is a crime in Australia. Trenbolone, also known as 19-nor-δ9,11-testosterone or as estra-4,9,11-trien-17β-ol-3-one, is a synthetic estrane steroid and a derivative of nandrolone (19-nortestosterone). This