Between 2017 and 2018, the number of people aged 12 and older who reported non-medical use of prescription pain relievers or heroin dropped by 11%, from 11.4 million in 2017 to 10.3 million in 2018. The overall share of the population 12 and older who reported opioid misuse or heroin use was 4.2% in 2017 and 3.7% in 2018. Of the 10.3 million who reported misusing opioids or using heroin in 2018, 97.1%, or 9.9 million people, misused prescription pain relievers such as hydrocodone, oxycodone, and prescription fentanyl. Approximately 7.9%, or . . .