Prescription Drug Histories among Drug Overdose Decedents in Delaware.

The US opioid epidemic largely featured deaths from prescribed medications during Wave 1 (1990-2010), but its progression since then has resulted more so from deaths to illegal opioids-such as heroin (Wave 2 - 2010-2013) and fentanyl (Wave 3 - 2013-present). As deaths to illegally manufactured fentanyl have increased, attention to the role of prescribed opioids may be waning. However, the shifting nature of today's opioid epidemic demands we monitor how both legal and illegal drugs are involved in overdose deaths. The purpose of our study is to investigate the prescription drug (Rx) records of overdose death decedents to illuminate the continued role of prescribed medications in Wave 3 deaths. We matched drug overdose death data and prescription drug monitoring data to investigate the prescription drug records (i.e. types of opioids and other medications) of Delaware, USA, decedents who died from a drug overdose death between January 1, 2013, and March 31, 2015 (27months). : Fentanyl decedents differed significantly from other decedents in prescribed medications, including the amount and proximity of opioid and Rx fentanyl prescriptions before death. These relationships held while controlling for demographic characteristics and contributing health conditions. : Our findings show a continued presence of Rx opioids in overdose deaths and that those dying from fentanyl had different Rx records than those who died from other drugs. Continued monitoring of Rx drugs, improved toxicology testing and greater data access for more research should follow to inform effective interventions.