Unfortunately, Deca Durabolin usage very commonly has the adverse side effect of interfering with recovery of natural testosterone production after a steroid cycle . Adverse side effect on libido and/or erectile function is also common, but typically only when dosage is at least 200-400 mg/week or when the drug is used alone at any effective dose. Problems are worse when Deca is not combined with testosterone or substantial doses of more androgenic compounds such as trenbolone , Masteron , or Dianabol . There is wide individual variability in response with regard to side effects on libido and erectile function. Depression of mood is also possible.
In 2002 the major league players and managers agreed to begin limited, anonymous testing for steroids. Two years later President George W. Bush took the unprecedented step of condemning steroids in his State of the Union address, saying the use of the "dangerous" drugs in baseball, among other sports, "sends the wrong message that there are shortcuts to accomplishments, and that performance is more important than character." That same year, standards grew tougher and major leaguers submitted to their first mandatory steroid tests. Under the penalties first introduced for doping in 2005, 12 players were suspended for 10 days each.