Q #556 - You take some cough medicine given to you by a friend. What should you do before driving?
If you've taken medicine, never drive without first checking what the side effects might be; they might affect your judgement and perception, and therefore endanger lives.
Ask your friend if taking the medicine affected their driving
Drink some strong coffee one hour before driving
Check the label to see if the medicine will affect your driving
Drive a short distance to see if the medicine is affecting your driving