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GTN storage — GPhC CRA MCQ

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ModerateDispensing and SupplyGTN storageGPhC CRA

A patient prescribed glyceryl trinitrate tablets has been storing them in a weekly pill organiser. He says they no longer relieve chest pain as quickly. What would you advise the patient?

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

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Correct answer: A — Keep GTN tablets in their original container and check the expiry after opening

GTN tablets are unstable and should be stored in the original container with attention to the in-use expiry. Transfer to pill organisers can reduce effectiveness. GTN spray may have different storage and expiry considerations.

Reference: BNF; SmPC