Amiodarone warfarin — GPhC CRA MCQ
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Correct answer: A — Amiodarone can increase warfarin effect and INR
Amiodarone can potentiate warfarin and the interaction may develop over time. 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