Dear Facility Manager,
As you may be aware, the insulin pens administered to your residents have stability limits. The following chart includes the stability of in-use pens at room temperature. We recommend that when a pen is first used, to label it with the date and adhere to the following manufacturer’s recommendations:
Levemir FlexPen 42 days
NovoLog FlexPen 28 days
NovoLog Mix 70/30 FlexPen 14 days
Humalog KwikPen 28 days
Humalog Mix 75/25 KwikPen 10 days
Humalog Mix 50/50 KwikPen 10 days
Humulin N prefilled pen 14 days
Humulin 70/30 prefilled pen 10 days
Apidra Solostar 28 days
Lantus Solostar 28 days
Note: For any unopened insulin pen which has been refrigerated, the expiration date listed on the pen may still be observed.
