Testosterone Enanthate is an extremely popular anabolic steroid, and should be found very easily on the anabolic steroid black market without any effort. It is also so common and easily manufactured that it should be obtained for very reasonable prices. Testosterone Enanthate exists as both human-grade pharmaceutical grade products, as well as underground lab (UGL) grade products on the market. The differences are obvious here, with quality control being the main issue, and that pharmaceutical grade Testosterone Enanthate is usually more expensive for obvious reasons.
Heavy consumption of the essential amino acid lysine (as indicated in the treatment of cold sores) has allegedly shown false positives in some and was cited by American shotputter C. J. Hunter as the reason for his positive test, though in 2004 he admitted to a federal grand jury that he had injected nandrolone.  A possible cause of incorrect urine test results is the presence of metabolites from other AAS, though modern urinalysis can usually determine the exact AAS used by analyzing the ratio of the two remaining nandrolone metabolites. As a result of the numerous overturned verdicts, the testing procedure was reviewed by UK Sport . On October 5, 2007, three-time Olympic gold medalist for track and field Marion Jones admitted to use of the drug, and was sentenced to six months in jail for lying to a federal grand jury in 2000.