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 ...

People swear they were only using 100% cannabidiol (CBD), yet they failed their drug tests anyway. But urine screenings don’t check for CBD, so how can using this cannabis compound get you in trouble?

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

Pre-employment drug testing can feel overwhelming for many employers. What are the rules? Do certain drugs matter more? What doesn’t matter at all? What can you let slide? The hard part is that ...