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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is Unrefrigerated Lantus Insulin Fit For Usage?

I have been taking LANTUS U100ml insulin for my Diabetes. My question is this; Can an unopened container of prescription LANTUS be kept out of the refrigerator(Opened)and at room temperature after it has been kept (Unopened)and refrigerated already for using?
Thu, 6 Feb 2020
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General & Family Physician,  's  Response
Hi,

Opened vial of the insulin glargine (Lantus) is stable for 28 days either at room temperature (defined by manufacturers as 77 to 86 degrees) or in a refrigerator (36 to 46 degrees). Shuttling opened Lantus insulin between refrigeration and room temperature does not appear to affect it's potency under these conditions and time periods.

However, manufacturers of insulin pens do not recommend storage in a refrigerator once a pen is opened and in use. Remember to protect Lantus insulin from exposure to light and extremes of temperature above and below those noted.

Hope I have answered your query. Let me know if I can assist you further.

Regards,
Dr. Mohammed Taher Ali, General & Family Physician
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Is Unrefrigerated Lantus Insulin Fit For Usage?

Hi, Opened vial of the insulin glargine (Lantus) is stable for 28 days either at room temperature (defined by manufacturers as 77 to 86 degrees) or in a refrigerator (36 to 46 degrees). Shuttling opened Lantus insulin between refrigeration and room temperature does not appear to affect it s potency under these conditions and time periods. However, manufacturers of insulin pens do not recommend storage in a refrigerator once a pen is opened and in use. Remember to protect Lantus insulin from exposure to light and extremes of temperature above and below those noted. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Mohammed Taher Ali, General & Family Physician