If you start to notice side effects, such as the beginning stages of gynecomastia, excessive water retention, or high blood pressure despite using anti-estrogen medications to prevent them, then your Deca Durabolin dosage is likely too high for your body. Just as you titrated your dose upward, begin to titrate back down if you notice these bothersome side effects. As an example, if you were taking four 100mg doses per week, use four 75mg doses per week, instead. This will shave 100mg per week off of your overall dose, and you should notice a difference. If not, go down to three 75mg doses per week.
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 steroid 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.