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GTN and sildenafil counselling — GPhC CRA MCQ

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ModeratePatient CounsellingGTN and sildenafil counsellingGPhC CRA

A 61-year-old man with stable angina is prescribed glyceryl trinitrate spray. He asks how to use it because he sometimes develops chest tightness when walking uphill and carries sildenafil bought online. What would you advise the patient?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — Use GTN sitting down and avoid sildenafil with nitrates

GTN can cause hypotension, dizziness and headache, so it should be used while sitting and the patient should know when to call emergency services. Sildenafil with nitrates can cause profound hypotension and must be avoided. Buying sildenafil online also creates a medicines-safety concern that warrants discussion of legitimate supply and cardiovascular suitability.

Reference: BNF; NICE CKS