Can over-the-counter medication ever affect your ability to safely operate a commercial vehicle?
Pick an answer
Correct!
Not quite. The correct answer is highlighted.
Correct answer to question 287 (General Knowledge): Yes, some over-the-counter medications can cause drowsiness or slowed reaction time
Why
Some common over-the-counter medications, such as antihistamines, can cause drowsiness, so drivers need to check labels and consider effects before getting behind the wheel.
Updated: November 2026