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Verapamil and beta-blocker — GPhC CRA MCQ

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HardCardiovascular TherapeuticsVerapamil and beta-blockerGPhC CRA

A man taking bisoprolol 5 mg daily presents a new prescription for verapamil modified-release 240 mg daily. He reports occasional light-headedness. What is the most important interaction to flag?

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

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Correct answer: E — Additive bradycardia and heart block risk

Combining a rate-limiting calcium-channel blocker with a beta-blocker can cause clinically important conduction problems. The best answer addresses the key safety, legal or pharmaceutical care issue in the vignette. The other options would either delay appropriate care, create a new risk, or fail to resolve the issue. This is consistent with the cited UK reference for safe pharmacy practice.

Reference: BNF; NICE CKS