Individuals who have experienced OxyContin withdrawal compare the process to the intensity of heroin withdrawal.
It is not uncommon for chronic methamphetamine users to experience psychotic behavior including intense paranoia, hallucinations, and out-of-control rage that can result in violent episodes.
Undesirable psychological effects caused by Ecstasy use occur in up to 60% of people who use Ecstasy, and can be defined as side effects of the drug.
Surveys indicate that 300,000 of today's college students will eventually die of alcohol-related causes such as drunk-driving accidents, cirrhosis of the liver, various cancers and heart disease.