An opioid is an opiumlike compound that binds to one or more of the three opioid receptors of the body.
In 2016, there were 119 opioid-related overdose deaths in Idaho—a rate of 7.4 deaths per 100,000 persons—compared to the national rate of 13.3 deaths per 100,000 persons. The number of overdose deaths attributed to specific categories of opioids continue to rise. From 2012 to 2016 the number of prescription opioid-related deaths increased from 45 to 77 deaths and synthetic opioid (mainly fentanyl) related deaths rose from 11 to 20 deaths. The number of heroin-related overdose deaths in Idaho have been available since 2014. Since then, they have risen from 11 to 25 deaths.