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Label warning drowsiness — GPhC CRA MCQ

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EasyDispensing and SupplyLabel warning drowsinessGPhC CRA

A patient is supplied chlorphenamine tablets for urticaria and drives a delivery van for work. The label includes 'may cause drowsiness'. They ask whether this matters. What is the legal classification/requirement?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: A — Avoid driving if drowsy and consider a less sedating alternative if needed

Chlorphenamine can cause sedation and impair driving or operating machinery. The patient should be advised not to drive if affected and may need a less sedating antihistamine depending on symptoms. Alcohol can worsen sedation. Required cautionary advice should not be removed merely for convenience.

Reference: BNF; MEP