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.

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 ...

COLUMBUS, Ohio — At Cleveland's Urban Kutz Barbershop, customers can flip through magazines as they wait, or help themselves to drug screening tests left out in a box on a table with a somber message: ...