lessthanhalf said:
In this specific case, 2 things come into play: could it be screened for or picked up at all? And does using it create danger for someone who drives commercially? Honestly, the 2nd point matters more, because you do not want a situation where hypoglycemia hits and they plow into pedestrians, or put passengers at risk through a crash.
As far as I understand it, GLP medications are not viewed as a hazard behind the wheel, and they generally do not bring on hypoglycemia, though someone with diabetes who also takes other glucose-lowering agents might run into trouble. Besides, there are already regulations and guidelines for evaluating commercial driving fitness when diabetes is present.
As for whether a blood test could catch it? I genuinely have no idea, and I cannot imagine why anyone would bother creating such an assay. It has not been approved as a drug, and GLP's are not even prohibited in sports, which would be the obvious motive to develop a test. Perhaps forensic work could find it? Hunting for strange peaks on HPLC, but that kind of analysis would only happen when determining an unknown or suspicious cause of death, or after a fatal crash, if investigators were digging especially hard for a drug-related factor in the driver, like after spotting odd bruising on the lower abdomen consistent with injections, yet imagining that actually occurring feels like a stretch.
There is no chance it shows up on any routine test. It likely makes driving less risky, since many people with obesity have sleep apnea, GLP's help with that, and sleep apnea leads to daytime drowsiness that raises accident rates.
Properly prescribed tirzepatide would fix the issue, but then there is the expense.