Experts are puzzling over which interventions are saving lives. The evolving illicit supply itself may hold important clues. Experts are puzzling over which interventions are saving lives. The evolving illicit supply itself may hold important clues. your-feed-science, your-feed-healthcare, Drug Abuse and Traffic, Deaths (Fatalities), Fentanyl, Opioids and Opiates, xylazine, Sedatives, Methamphetamines, Naloxone (Drug), Research, United States NYT > Science