Insulin storage — GPhC CRA MCQ
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Correct answer: D — Keep 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