opioid intoxication
in DSM–IV–TR and DSM–5, a reversible syndrome due to the recent ingestion of an opioid (e.g., morphine, heroin). It includes clinically significant behavioral or psychological changes (e.g., initial euphoria followed by apathy, dysphoria, psychomotor agitation or psychomotor retardation, impaired judgment, and impaired social or occupational functioning), as well as one or more signs of physiological involvement (e.g., pupillary constriction, drowsiness or unconsciousness, slurred speech, respiratory depression).