Drug tests, used to detect the presence of fentanyl and xylazine in different kinds of drugs, such as cocaine, methamphetamine, and heroin, are seen at St. Ann's Corner of Harm Reduction in New York ...

Fentanyl is a synthetic opioid that’s 50-100 times stronger than the pain reliever morphine. While some people use fentanyl on purpose, many others get it in their systems without their knowledge.

In a rapid shift since last year, over a dozen states have moved to legalize fentanyl test strips. The change is one that harm reduction proponents argue is necessary during an era where fentanyl ...