Insulin fridge life

[linlam]

Whilst cleaning the fridge this morning I found that the box that my husbands insulin came in was dispenced in February. He used to go through the box of five cartridges in about 6 weeks, but because he's changed his eating habits for the better, he now only needs to use the insulin maybe 3-4 units a week, as opposed to the 14 before.
Will it be better to take the cardridges that are left back to the pharmacy, and ask the doc for a fresh prescription, or just carry on with the ones he has?

Thank you?

[sqad617]

Look at the "use by" date either on the carton or on the bottom of a vial.

[JamSam17]

Obvoiusly you can't beat the use by date but my insulin lasts for ages in the fridge.
I was told it only lasts about a month out of the fridge but as long as it's kept cool, it's fine. (Within date!)

So, basically what Sqad said!

[PringlesQueen]

If the vials were stored against the fridge wall there is a chance they could have got too cold and might have started to crystalise.
I would check the vials first (as your husband probably does every time anyway). If they look different, I would get a new prescription.