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Insulin storage — GPhC CRA MCQ

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EasyEndocrine TherapeuticsInsulin storageGPhC CRA

A patient collecting insulin aspart pens says she stores every pen in the freezer because her kitchen is warm. One pen was thawed overnight and looks clear. What would you advise the patient?

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Correct answer: E — Do not use frozen insulin and store unopened pens in a refrigerator

Insulin that has been frozen should not be used because potency may be affected. Unopened insulin is normally stored in a refrigerator, while in-use pens may be kept at room temperature within the manufacturer's time limits. Temperature counselling is essential for safe supply.

Reference: BNF