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Citalopram azithromycin — GPhC CRA MCQ

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HardDrug InteractionsCitalopram azithromycinGPhC CRA

An older woman taking citalopram with previous syncope is prescribed azithromycin. 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 — Additive QT prolongation risk

This scenario assesses Citalopram azithromycin in a UK pharmacy practice context. Both medicines can prolong QT interval, increasing arrhythmia risk in susceptible patients. The best answer is Additive QT prolongation risk because it addresses the principal clinical, legal or safety issue before routine supply. The other options are less appropriate because they either miss the key risk, delay necessary review, or would not meet expected BNF, NICE, MEP, MHRA or GPhC practice standards.

Reference: BNF