The U.S. Department of Transportation added four semisynthetic opioids to its drug testing panel on the first of this year. Now, just over 10 months later, those four—hydrocodone, hydromorphone, oxycodone, and oxymorphone—are turning up more often than their older counterparts when transportation professionals fail a drug test. New data from the Quest Diagnostics Drug Testing Index show that the positivity rate for them is “notably higher” than the positive rate seen for more traditional opiates. Prior to …
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