Sudden drop in fentanyl overdose deaths linked to Biden-era global supply shock

This study published in Science reveals that a sudden drop in fentanyl overdose deaths in the United States and Canada is linked to a global supply shock, likely caused by Chinese regulations on chemical precursors spurred by US diplomacy. The research suggests that the decline in deaths is due to a reduction in the availability of high-purity fentanyl, which has been correlated with fewer overdose fatalities.