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Insulin storage — GPhC CRA MCQ

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HardEndocrine TherapeuticsInsulin storageGPhC CRA

A patient stores unused Lantus SoloStar pens in the refrigerator and returns the pen currently in use to the refrigerator door after every injection. It was first used 12 days ago and has never frozen or exceeded 30°C. What is the best advice?

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

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Correct answer: DKeep it below 30°C outside the refrigerator and discard it after 4 weeks

Unused SoloStar pens are refrigerated at 2–8°C and must not freeze. Once in use, a pen is kept below 30°C, protected from direct heat and light, and must not be refrigerated; it is discarded after a maximum of 4 weeks. Recording the first-use date helps prevent accidental extension beyond the in-use period.

Reference: Lantus SoloStar 100 units/mL pre-filled pen SmPC: https://www.medicines.org.uk/emc/product/8098/smpc