Some Ecstasy users experience negative effects right away and may become anxious and agitated.
Opiate addicted individuals often cannot hold jobs and may even be involved in crime to pay for their addiction.
Mexico has become an exclusive source of most of the illicit fentanyl for sale in the U.S.
The number of patients in search of detox or substance abuse treatment as the reason for their emergency room visit remained relatively stable between 2004 through 2008.