If it's only supposed to be good for 28 days after you remove it from the refrigerator, why couldn't I keep it in the refrigerator and use my dosages from there and continue on using the pen pen Neil it is used up?
From what I read, it has to do with FDA guidelines concerning the opening of sterile products. i.e. when you first use a new pen or vial, you introduce air and potential germs into the mixture. FDA regulations maintain that insulin that has been opened/used should be thrown out after 28 days to avoid people getting sick, however low the odds of infection are.
I think that people are more likely to continue using an opened bottle or used pen after the 28 days when they refrigerate them in-use, so the companies insist that the insulin should be kept at room temperature. People are more likely to toss them when they haven't been 'preserved'.
The only exceptions companies make for storing pens in the fridge is when you live in a hot climate and room temperature exceeds 80F/25C regularly. Then you have to keep them refrigerated so the proteins don't spoil.
That said, wasting half a pen is unnecessary - if you have informed yourself of the potential consequences then it's up to you whether you continue using it until it's empty or not. Storing a used pen in the fridge will reduce the chance of spoiling due to the cold, but be aware that the proteins will break down eventually. As long as your levels remain stable, you should be good, but toss and use a new one if you're seeing odd fluctuations.
Like all Insulin's what works for one may not for another
I've been on Toujeo since last July and for me it has worked wonders whereas Lantus & Humulin didn't
Hey, me too!
July last year I started Toujeo as my first insulin. As long as I stay on top of the correct dosage I have flat lines between meals and during the night.