Misleading labels can blow a drug test

Ozempic for weight loss? Impossible to imagine how popular that idea is. Side effects can include constipation, hydration is essential, many recommend eight glasses of water a day even without meds.
But while on the road and stopping for a break, feeling thirsty, and seeing next to the cash register pop cans with colorful soft drink labels in a glass door chiller display set at the perfect height for a small child, where a thirsty person cannot miss it, an impulse to grab a quick cold one could cost one's CDL after a drug test.
Does not matter what the label said. If there is a cannibanoid ingredient involved, and there are thousands of natural ones, many are illegal when found in the systems of CDL license holders. The end. Even when that tiny print is read, saying something about this, nothing says it has to be right. Caveat emptor. 
Legally required drug tests are so highly regulated, and so many ordinary fender-bender situations automatically trigger testing, and these days there are so many drivers having tests done, there is delay while waiting for results as specimens pass through several obscure chains of custody to some distant outstate lab.
Who knows how many hands that specimen passes through. More than a few. While tests are pending, where is the driver? Waiting.  On paid time, or not?