View Single Post
Old 01-21-2010, 03:53 PM
Patty's Avatar
Patty Patty is offline
Senior Member and Moderator
Join Date: Nov 2008
Location: Central CO
Posts: 8,326
Default Re: Insulin and Expiration Dates ?

I used to use a bottle of Humulin NPH past 30 days as I believe insulin can be used beyond that time. But last year I started seeing a trend in rising bgs after/around day 25-30. Now as a precaution I open a new bottle on day 25. It just wasn't worth adding another reason for Ali to "wobble" into our mix.

Now I had a bottle of Humalog (a clear rapid acting insulin) for 6 months rarely used in the fridge as a "just in case," and when I needed to use it during our Lantus trial it worked just fine. I purchased other bottle during this time and found the same results with the new bottle as the old.

I do think there's a difference in how long the clear vs. cloudy suspensions keep.

Patty and Ali 13.5yrs 47lbs diagnosed May '08 Ali earned her wings October 27, 2012, 4 months after diagnosis of a meningioma ~ Time is precious ~