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 ...

People who may think they are using just cocaine or other illegal stimulants are starting to overdose in larger numbers, as the deadly opioid fentanyl increasingly invades the illicit drug supply – ...