Quote:
Originally Posted by KickStart101 
I started my first bottle of Lantus on Nov. 19. I have 10 units left in it and it's
still working fine. That's airless and no vacuum about 43 days later.
It could be, putting common air(which is dirty)in the vial degrades the
Insulin quicker.
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I find that really interesting, as I haven't been able to get more than 36 days out of a bottle of Lantus yet, and I haven't used it all up by then and it really grates me throwing away insulin that I pay for out of my own pocket. Right around the 36 day mark my b/s starts creeping up and just gets worse until I give in and throw out the bottle. Within 4 hours of injecting from a new bottle my b/s magically settles down. I can see where the common air theory makes good sense. Where exactly is anyone going to find pure air these days?
