BTNX Inc., the Ontario-based company that makes the test strips, said sales have been rising steadily since March, to about 200,000 kits this month.

OLYMPIA — Health officials say fentanyl test strips could help prevent accidental overdoses, but under current law, they’ve been illegal because they fall under the definition of drug ...

Fentanyl test strips have been shown to be highly effective and cost-efficient at fighting the crisis, but Texas is one of the few states that has not decriminalized them.(RJ Sangosti/MediaNews ...