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Which Drugs Are Disqualifying for a Commercial Motor Vehicle Driver?

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Drivers can never take the following drugs, even with a prescription:

  • Amphetamines
  • Narcotics
  • Insulin to control diabetes
  • Anti-Seizure medications
  • Any other habit-forming drugs or those that affect safe driving ability

The effects and/or side effects of herbs, supplements, and legally prescribed medications may interfere with safe driving. A driver may experience the following:

  • An altered state of alertness, attention, or temporary confusion;
  • Physical symptoms such as low blood pressure or increased bleeding that may lead to incapacitation.

Exception: The prescribing doctor documents that the driver is safe to be a commercial driver while taking the medication. The medical examiner may, (does not have to) certify the driver. The medical examiner will make his/her own determination and may request a letter from the prescribing doctor.

Check back next week for more information about a DOT physical!

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