SACRAMENTO — Fentanyl test strips used to be illegal in California. Now, state law requires them on community and state college campuses, and they're popping up everywhere from vending machines to ...

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(Editor's Note: This story is not about fentanyl addiction, which is a separate serious issue. This story is for people who would never intentionally take fentanyl, and their families and their kids' ...

Synthetic opioids are a leading cause of death in the United States. At Coachella, a group of independent volunteers handed out fentanyl test strips and carried the overdose treatment Narcan in an ...

Public health workers will soon have a new tool at their disposal to thwart a spreading danger to users of illicit drugs: xylazine test strips. The new testing kits will allow health departments, ...

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.

Proponents say the ability to check drugs for the presence of lethal fentanyl may save lives. But critics say the strips enable drug use. By Jan Hoffman Photographs by Desiree Rios “You smoke weed?” ...