Abuse of central nervous system (CNS) stimulants is common. Addiction to some CNS stimulants can quickly lead to medical, psychiatric, and psychosocial deterioration. Drug tolerance, dependence, and sensitization as well as a withdrawal syndrome can occur.
The judicial branch decides what amendments are unconstitutional as well as acts of the president. However, if the judicial branch were to declare an act of the president unconstitutional, it would mean that Congress agreed to this act.
(Infoplease) For the first time, the Supreme Court declares an act of Congress unconstitutional, declaring, A law repugnant to the Constitution is void.. The court does not strike down another federal law until the Dred Scott decision in 1857. (Gilder Lehrman Institute).