Domperidone QT risk — GPhC CRA MCQ
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Correct answer: C — Avoid domperidone and refer for prescriber assessment
Domperidone is associated with QT prolongation and serious cardiac arrhythmia risk, especially in older patients and with QT-prolonging medicines. This patient has multiple risk factors and needs prescriber assessment. Substituting another antiemetic without considering the cause and interactions may be unsafe. Increasing citalopram is not an antiemetic strategy.
Reference: BNF Domperidone; MHRA Drug Safety Update