The positivity rate for urine tests indicating the presence of the deadly synthetic opioid was 0.55% in 2024, increasing ...

The Department of Transportation announced this week it wants to add fentanyl testing to its mandatory drug screening program ...

The powerful, deadly opioid is increasingly present in the U.S. workforce, as reflected in data from national testing lab ...

Citing the frequency of overdose deaths nationwide and in the interest of transportation safety, the U.S. Department of ...

Quest reports a sharp rise in fentanyl use in U.S. workplace drug tests, raising concerns about safety, addiction and ...

Olympic sprinter Erriyon Knighton has been suspended four years after an appeal over a positive drug test from March 2024.