The effects of cocaine generally last about two hours.
Mexico supplies most of the heroin found in the western portion of the United States, and Colombia supplies the majority of the heroin east of the Mississippi.
Out of the estimated 205,400 drug-related emergency room visits made by people seeking detox or substance abuse treatment services in 2009, almost three quarters (69.2%) involved multiple drugs.
Long-term use of OxyContin both legitimately and illicitly causes the body to adapt to the presence of the drug and withdrawal symptoms occur if use is reduced or stopped.