AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/diab-insulin-room-temp-28

Per FDA general guidance, insulin in a maker's vial or cartridge can stay unrefrigerated up to about how long?

Up to 28 days at 59°F to 86°F. Some products differ, so check the label.

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  1. 2 days
  2. 6 months
  3. 28 days ✔

Why: FDA says insulin in the maker's vials or cartridges, opened or unopened, can be kept between 59°F and 86°F for up to 28 days and still work. Some products have different limits, so follow your label.

Huh, didn't know that: FDA says insulin that has been diluted or removed from the maker's original vial should be thrown away within two weeks.

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References

Answer: 28 days. FDA says insulin in the maker's vials or cartridges, opened or unopened, can be kept between 59°F and 86°F for up to 28 days and still work. Some products have different limits, so follow your label.

  1. FDA, Information Regarding Insulin Storage www.fda.gov/drugs/emergency-preparedness-drugs/information-regarding-insulin-storage-and-switching-between-products-emergency
    may be left unrefrigerated at a temperature between 59°F and 86°F for up to 28 days and continue to work
    Checked 2026-10-09.

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