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Verapamil with beta-blocker — GPhC CRA MCQ

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ModerateCardiovascular TherapeuticsVerapamil with beta-blockerGPhC CRA

A patient taking bisoprolol 5 mg daily is prescribed verapamil 80 mg three times daily. Resting pulse is 58 beats per minute. 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: C — Verapamil with a beta-blocker may cause bradycardia, hypotension or heart block

Both medicines slow atrioventricular conduction and reduce cardiac contractility. In this scenario, the pharmacist should prioritise safe supply, appropriate counselling and timely referral or clarification where needed. This is the single best answer because the other options would either delay assessment, ignore a clinically significant risk, or create an unsafe legal or professional outcome.

Reference: BNF