Injectable steroids are injected into muscle tissue, not into the veins. They are slowly released from the muscles into the rest of the body, and may be detectable for months after last use. Injectable steroids can be oil-based or water-based. Injectable anabolic steroids which are oil-based have longer half-life than water-based steroids. Both steroid types have much longer half-lives than oral anabolic steroids. And this is proving to be a drawback for injectables as they have high probability of being detected in drug screening since their clearance times tend to be longer than orals. Athletes resolve this problem by using injectable testosterone early in the cycle then switch to orals when approaching the end of the cycle and drug testing is imminent.
The British National Formulary recommends a gradual withdrawal when discontinuing anti-psychotic treatment to avoid acute withdrawal syndrome or rapid relapse.  Due to compensatory changes at dopamine, serotonin, adrenergic and histamine receptor sites in the central nervous system, withdrawal symptoms can occur during abrupt or over-rapid reduction in dosage. However, despite increasing demand for safe and effective antipsychotic withdrawal protocols or dose-reduction schedules, no specific guidelines with proven safety and efficacy are currently available. Support groups such as the Icarus Project , and other online forums provide resources and social support for those attempting to discontinue antipsychotics and other psychiatric medications.  Withdrawal symptoms reported to occur after discontinuation of antipsychotics include nausea, vomiting, lightheadedness, diaphoresis , dyskinesia , orthostatic hypotension , tachycardia , nervousness, dizziness, headache, excessive non-stop crying, and anxiety .   Some have argued additional somatic and psychiatric symptoms associated with dopaminergic hypersensitivity, including dyskinesia and acute psychosis, are common features of withdrawal in individuals treated with neuroleptics.     Thus, some suggest the withdrawal process itself may be schizo-mimetic, producing schizophrenia-like symptoms even in previously healthy patients. 
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. 
As bulking is a primary purpose of use, many rarely think of Durabolin as part of a cutting cycle, but it can serve a purpose. This steroid will greatly protect lean muscle mass during a necessary caloric restriction. Remember, to lose body fat you must burn more calories than you consume, and this can lead to lean tissue loss. Durabolin supplementation will prevent this. During the dieting phase, many also choose to use Nandrolone for the recovery, endurance and relief it can provide. Undeniably hard dieting can take a toll on the body, making low dose supplementation during this phase extremely beneficial.