I'll ask about a different kind of insulin - my dad is a pharmacist and he wondered if a different type would work as well.

We've lowered the dosage for his insulin and he would still vomit. Before the vet wants to "offically" tell us to lower his dosage he wants us to bring Rush in for a blood test again....my mom is loath to pay the money for something that we don't even know will help him in the long run.

We also think that him eating the dry food caused him to vomit. Now that he is off the insulin and only eat moist food (Nutro Max Cat) he hasn't vomited in large quantities at all - only a little spot here or there. He also also gained a bit of weight.

We weighed him the other day and he weighed about eight pounds. Considering at a healthy weight he was 12-14 pounds, he is very skinny.

And once stable, diabetic animals can do quiet well, just like people.
He has been "officially" diabetic for about a year or so now, maybe more. He had been stable and his diet and insulin were working fine. It has just been recentally that this has started happening.

When we took him in for his blood test, the only thing wrong with him was an inflamed pancreas. The vet put him on meds to help that as well as meds to help stop his vomiting. The meds to stop the inflammation were an anti-inflammatory drug (imagine that). When he stayed on those meds he didn't vomit either - but he was on them for about a month longer than he should have been to stop the inflamation. It got to the point where he wouldn't take the pill and when we would liquify it and shoot it down his throat he would cough it back up later.

Once we stopped the pills and the insulin both - no vomiting. Just recentally he has started to vomit whenever he would eat the dry cat food. Now that he only eats moist, no vomiting.

His stomach also gurgles something awful, so I don't think it has anything really to do with the insulin by itself at all, but his digestive tract. Something that the insulin just sets off and the hard food irritates.

I really have no idea. I've talked a couple of times with some vet techs and they really have no idea either. We are all just stumped.