The 4/20 holiday is this weekend. And if you choose to celebrate, please do so safely. But also, in states like Texas — where the substance is still illegal — it's essential to be wary of a drug test ...

In the child welfare system, the threshold at which a drug test is considered positive varies widely from one jurisdiction to ...

Illicitly manufactured fentanyl and amphetamine-type stimulants are major contributors to the opioid crisis in North America.