JAMA Network
About The Study: This cross-sectional study found that absolute concentrations of fentanyl, methamphetamine, and cocaine in urine specimens increased from 2013 to 2023, with a decrease in heroin concentration during that period. The findings suggest that exposure to these substances, as well as the illicit drug supply, has fundamentally changed in many parts of the U.S., highlighting the need to reinforce surveillance initiatives and accelerate efforts to treat individuals with illicitly manufactured fentanyl and/or stimulant exposure.
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