Trends in Nonfatal Fentanyl Exposures Involving Stimulants in the United States, 2015–2023, in American Journal of Preventive Medicine
key takeaway: "Between 2015 and 2023, among fentanyl-related exposures, cocaine use increased from 1.3% to 10.0% (669.2% increase, p<0.001) and methamphetamine use increased from 1.5% to 10.8% (620.0% increase, p<0.001)."