Vetsulin Insulin U-40 Cartridge for VetPen
It’s great because they last for a while before replacing, depending on the dosage. Easy to I stall
In response to the other reviewer with the small dog, insulin should be disposed of 28 days after opening the vial. You may see blood glucose begin to rise after that as the insulin degrades. Check with your vet! I like that these are at least smaller than the 10ml bottles. We only need 2 mls per month for our cat and I can't stand the idea of throwing away 8mls of insulin!
We hada recent delivery for our cat but the pharmacy sent the incorrect cartridge. It reads the same and has the correct amount but no way will it fit into our vet pen 16. Supposedly they are sending the correct one but there is no action on the account or tracker to say it is on the way in time. We will go today to find syringes in order to use the incorrect cartridge until our next autoship (3weeks out). Wewerevery satisfied with the vetpen up until now. Here's hoping things get back to normal soon and our cat doesn't suffer for it.
Very easy to use for person not used to giving shots. One cartridge last a long time for my small dog.