PCP users are commonly brought to emergency rooms because of overdose or because of the drug's severe psychological effects.
Symptoms of alcohol withdrawal may include extreme anxiety, disorientation, hallucinations, sleep disorders, hand tremors, nausea, sweating, seizures, and racing pulse.
Rates of marijuana use are now ahead of cigarette smoking among high school students in the U.S.
Many steroid supplements are currently sold over the counter at health food and drug stores.