Study, Aug/16: Psychoactive substance use before dvpt of iatrogenic opioid abuse

The full title of this American study is "Psychoactive substance use prior to the development of iatrogenic opioid abuse: A descriptive analysis of treatment-seeking opioid abusers."

From the study:

"Our results indicate that pain patients who developed a substance use disorder were rarely drug naïve prior to receiving their first opioid prescription. Rather, most have an extensive history of psychoactive drug use."

http://www.ncbi.nlm.nih.gov/pubmed/27544696