opioids, abuse of

opioids, abuse of (ō´pēoidz),

n a regular use of heroin, codeine, or morphine for reasons other than recognized medical applications.
References in periodicals archive ?
Rather, the variation is due to a combination of factors, he said, including a lack of clear consensus on evidence about when to use opioids, abuse of the drugs, and the growth of "pill mills" that do large volumes of inappropriate prescribing of opioids.