Which of the following is a potential side effect of motion sickness medication?

• A. Drowsiness
• B. Blurred Vision
• C. Dry Mouth
• D. Nausea

Answer: (B)

Motion sickness medicines often work by blocking acetylcholine or histamine receptors. The anticholinergic action can affect the eye’s ability to focus and its pupil size, leading to blurred vision. While drowsiness and dry mouth are common side effects of these drugs, blurred vision is a direct ocular effect you’re specifically looking for with this class of medication. Nausea is typically what the medication aims to prevent, rather than a common side effect, which is why blurred vision is the best choice here.