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Insulin expiration in the pump

  • Anonymous ORIGINAL POSTER
    Does insulin expire faster or slower if you place it in an insulin pump? please let me know
  • Samuel Grossman, BS Pharm, Pharm.D, CDE PROFESSIONAL
    Once an insulin vial is taken out of the refrigerator and opened it will expire in 28 days. Whether the insulin is in a pump or sitting on the table it will not make a difference. It is important to write the date that the insulin vial was opened and to remember that an expired insulin will not function well after 28 days in the pump. A possible first sign of an expired insulin vial is high glucose levels despite no change in your level of activity or the amount of carbohydrates you consume.