# Duration of Humalog vs Novolog in cartridges

**URL:** <https://forum.fudiabetes.org/t/duration-of-humalog-vs-novolog-in-cartridges/13547>\
**Category:** Pump\
**Tags:** insulin\
**Created:** [February 3, 2023, 12:51pm UTC](https://forum.fudiabetes.org/t/duration-of-humalog-vs-novolog-in-cartridges/13547 "2023-02-03T12:51:10Z")\
**Posts on this page:** 3\
**Page:** 2

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**Author:** ![Sjwprod](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sjwprod/32/10120_2.png) [@Sjwprod](https://forum.fudiabetes.org/u/Sjwprod)\
**Post date:** [February 10, 2023, 7:53pm UTC](https://forum.fudiabetes.org/t/duration-of-humalog-vs-novolog-in-cartridges/13547/22 "2023-02-10T19:53:21Z")

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Insulin Storage and Africa, Dagahaley refugee camp study

> **[MSF study shows some insulin can be stored at warmer temperatures](https://www.doctorswithoutborders.org/latest/msf-study-shows-some-insulin-can-be-stored-warmer-temperatures)**
>
> NEW YORK/GENEVA, FEBRUARY 3, 2021—A joint study published today in PLOS ONE by the international medical humanitarian organization Doctors Without Borders/Médecins Sans Frontières (MSF) and the University of Geneva shows that a range of insulins...

Insulin Durability - 2012

[https://www.diabetesdaily.com/blog/insulin-may-withstand-high-temperatures-better-than-you-realize-700059/](https://www.diabetesdaily.com/blog/insulin-may-withstand-high-temperatures-better-than-you-realize-700059/)

Insulin In Pumps

A [2012 study](https://www.liebertpub.com/doi/10.1089/dia.2011.0125) found that insulin in a pump can retain potency for 14 days when exposed to a continuous temperature of 37 degrees C (98.6 degrees F).

[https://www.liebertpub.com/doi/10.1089/dia.2011.0125](https://www.liebertpub.com/doi/10.1089/dia.2011.0125)

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<div class="post-metadata">

**Author:** ![CarlosLuis](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/carlosluis/32/11389_2.png) [@CarlosLuis](https://forum.fudiabetes.org/u/CarlosLuis)\
**Post date:** [February 10, 2023, 8:10pm UTC](https://forum.fudiabetes.org/t/duration-of-humalog-vs-novolog-in-cartridges/13547/23 "2023-02-10T20:10:08Z")

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I want to thank everyone for their responses to my OP. I don’t think that we will have an answer to what is the meaning behind tossing the insulin in a vial at day 19 when insulin had been drawn from the vial to be used in a pump.

Just have to be a mystery or mistake missed by a proof reader.

I am aware that there is evidence that insulin can be effective after expiration date, past 28 days from 1st use or even baked in hot cars.

My Tandem trainer cautioned me about filling cartridge for later use which makes me think there’s concern of a chemical interaction between the bag and the insulin.

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<div class="post-metadata">

**Author:** ![Sjwprod](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sjwprod/32/10120_2.png) [@Sjwprod](https://forum.fudiabetes.org/u/Sjwprod)\
**Post date:** [February 13, 2023, 11:18pm UTC](https://forum.fudiabetes.org/t/duration-of-humalog-vs-novolog-in-cartridges/13547/24 "2023-02-13T23:18:52Z")

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Currently there is no clinical data showing any degridation with pump approved insulin, in fact the opposite. For example, two pump approved insulins, novolog and lyumjev, are approved for 6 and 9 days respectfully. I’ve fully filled cartridges since pump approved insulins were first approve, decades ago, w/o issues. It is to bad the rep doesn’t know what there rjing about and continues pushing an untruth.

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