British Columbia Knowledge Test Coach
Alcohol, drugs and fitnessQuestion 322 of 412

What effect can cold, cough and allergy medicines bought without a prescription have on a driver?

  1. They make reaction time faster
  2. They improve alertness
  3. They can cause drowsiness and inattention
  4. They have no effect on driving
Show answer

Correct answer: They can cause drowsiness and inattention

Common medicines can make a driver sleepy and less attentive. Read the label first.

Source: Learn to Drive Smart (ICBC, 2026), Chapter 7, Personal strategies: Facts about drugs, page 105

Practice alcohol, drugs and fitness

Questions last reviewed: 18 October 2026