Since we are talking about the long-acting estered variant of Nandrolone (with a half-life of approx. 15 days), a cycle should last at least 12 weeks. Due to its long-acting nature, users are unlikely to notice its effects until at least a couple of weeks after starting the cycle. This is why many users opt for a kick-starting oral compound (. Winstrol, Dianabol, Anavar etc.) during the first weeks of their cycle. However, for bulking and strength gaining purposes, users generally opt for more suitable compounds such as Anadrol or Dianabol.
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.