24th April 2024

A 62-year-old patient with a background of angina attends cardiology follow up.

A 62-year-old patient with a background of angina attends cardiology follow up. He reports exertional chest discomfort, which has persisted despite 10mg of bisoprolol OD and 10mg of amlodipine OD. His observations include: blood pressure 135/80mmHg, heart rate 55 beats per minute, respiratory rate 14 and O2 saturation 98% on room air. You prescribe and counsel him on a third antianginal medication for symptom control and refer him for consideration of revascularisation therapy. What is the mechanism of action for his new antianginal medicine? 

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