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AhaBulb: Stuff Everyone Should Know · ahabulb.com/diab-insulin-fridge

Where should unopened insulin normally be stored?

In the refrigerator, about 36°F to 46°F.

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  1. In the freezer
  2. In the refrigerator, 36°F to 46°F ✔
  3. On a sunny windowsill

Why: Insulin labels recommend refrigerator storage. Unopened insulin kept this way works until the expiration date on the package. Always check your own product's label too.

Huh, didn't know that: The FDA notes that all three U.S. insulin manufacturers' labels recommend refrigerator storage.

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References

Answer: In the refrigerator, 36°F to 46°F. Insulin labels recommend refrigerator storage. Unopened insulin kept this way works until the expiration date on the package. Always check your own product's label too.

  1. FDA, Information Regarding Insulin Storage www.fda.gov/drugs/emergency-preparedness-drugs/information-regarding-insulin-storage-and-switching-between-products-emergency
    it is recommended that insulin be stored in a refrigerator at approximately 36°F to 46°F.
    Checked 2026-10-09.

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Health BasicsPer FDA general guidance, insulin in a maker's vial or cartridge can stay unrefrigerated up to about how long?Health BasicsYour insulin accidentally froze. What does the FDA say?Health BasicsWhich is a bad place to leave insulin?

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