Para-fluorofentanyl ("China-white") has recently reemerged in the illicit drug market. Benzimidazole-opioids have also been found in heroin.
This report contains findings from autopsy and toxicology results from 21 counties surrounding Knox County, TN. From November 2020 to August 2021, there were 770 reported overdose deaths. Among those, 562 (73%) were positive for fentanyl.