Any ideas what this is?

[hollyjessicabibik]

Hi all. T1 here, went to do a correction dose of my Lyumjev and saw this floating around in there. Any ideas what it could be? Initial thought was it could be from the rubber in the pen itself but then how would it get into the cartridge? Any ideas please let me know!

 

[Jaylee]

Hi,
Welcome to the forum.

What's the expiry date on the insulin??

Edit; I found this on page 2 here on “step 2” after preparing your pen..

Your photos seem to suggest you have particles or clumps in it.
They say do not use..

https://pi.lilly.com/us/lyumjev-kwikpen-us-ifu.pdf?s=ug1