insulin shelf life once opened??

By realsis77 Latest Reply 2011-03-26 11:18:00 -0500
Started 2010-09-15 12:34:20 -0500

Hi family! Can someone please tell me the shelf life of insulin humulin before it starts to break down and go bad? thank you

10 replies

EJMac 2011-03-26 11:18:00 -0500 Report

Hi There I use the pens for both the Lantus and Humalog so I can take one pen out of the fridge at a time. The expiration date is Oct 2011. The ones I'm using stay at room temp for up to a month. Do you have the pens? Sure is nice for putting in your purse and taking it with you when you go out. Lantus lasts me a month; Humalog about 2 months.

northerngal 2011-03-26 08:50:27 -0500 Report

They all generally say 28 days when properly stored. When I used bottles or pens, I regularly used them past that time with NO problems. Throwing away un-used expensive medication isn't always an option for some. The biggest secret is to store it properly and I always found refrigeration a much better idea. Although pumps are on your body and obviously not refrigerated, but the vials are used for only a handful of days. The bottle stays in the refrigerator until a new vial needs to be filled.

frogqtie2 2011-03-25 22:35:11 -0500 Report

Each one has a different answer…I use Novolin and my pharmasist, and the hospital both told me 28 days refrigerated after opened. I always replace in 28 days after it is opened.

spiritwalker 2010-09-15 15:09:55 -0500 Report

Insulin is good for 28 days once its opened.

kdroberts 2010-09-16 12:27:59 -0500 Report

It depends on the type, some are good for 30 (novolin vials for example) or up to 42 days (levemir for example), some expire 7-14 days after opening although it's the older types in pens like the humulin and novolin mixes. Vials and pens do not always have the same type of expiration even if it's the same type of insulin.

kdroberts 2010-09-15 12:47:02 -0500 Report

I believe 28 days in the fridge or at room temperature once you start using it, 28 days at room temperature for unopened vials and up to the expiration date for refrigerated, unopened vials.

realsis77 2010-09-16 12:12:17 -0500 Report

Thank you so nuch for answering me. It never said that I saw when it expired once opened. I keep the opened bottle at room tempature like the pharmacy sticker told me too. I know my bottles comming up on a month and I was worried thanks again for your help! :)

mo91108 2010-09-15 12:42:55 -0500 Report

I was told that insulin is only good for 28 days after opening it at least that is what it is for my Lantus.

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