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 ...

As fentanyl hidden in a high percentage of illicit street drugs continues to kill, momentum to legalize strips that check for the presence of the synthetic opioid is growing. Two bills — House Bill ...

In New York, fentanyl test strips are becoming more common as a way to fight an overdose crisis, and more states are pushing to legalize them. But not all users are trying to avoid the powerful drug.

Nothing has made the nation’s addiction epidemic more deadly than fentanyl’s infiltration of the drug supply. Yet in more than a dozen states, tools used to detect the ultra-potent synthetic opioid ...

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?” ...