please stick with 0.8u at least a few more times so we have a better idea how the insulin is working.
if the blood sugar drops too much or you still have an unshootable number at +12 reduce a tiny bit further. otherwise please stick to the dose a few more times.
you mentioned U100 syringes before. yes, many of us at PZI use(d) them (cleo switched from pzi vet to lantus), and they make dosing a lot easier/more precise.
if you get the ones with half-unit measurements (make sure it says that on the box because clerks sometimes mess up), each black mark on the syringe represents 0.2u of U40 insulin.
i use 3/10cc, 5/16" needle, 31 gauge U100 syringes with half-unit measurements and get them either at walmart (some walmarts have phased them out tho) or via hocks.com. they come in a box of 100. hocks.com does not require a prescription, nor do many states. the 5/16" needle is shorter, so it's easier to insert.
some vets are uncomfortable having clients use U100 syringes with a U40 insulin because they worry the client will make a mistake in conversion. but if you count each mark as 0.2u, it's pretty hard to make a mistake.
it's hard not to stress when your little guy is sick, but remember that all of us went thru this. most of us were no smarter and no more experienced than you are now, but we all learned and you will, too. many of our cats have lived long happy lives with insulin, some as long as 14 years. it's a godsend for a diabetic cat.
i happened to like PZI Vet a lot. of the insulins available now, many people have been perfectly happy with BCP PZI, and prozinc is showing promising results. lantus or levemir are also great insulins. they all have their pros and cons. pzi vet, in my opinion, is great because it can knock high numbers down pretty quickly and takes well to dose adjustments. some of the others require very consistent dosing.
the point to keeping the dose consistent for a few days is to gather more data on how your cat is doing on the insulin. if we keep varying the dose, it makes it harder to figure out what's working and what isn't. BUT, if your cat's number is too low at preshot, again, wait 15 or 20 min and retest, don't wait an hour, in case the number shoots up when the insulin is depleted. big jumps or drops in blood glucose don't feel good, so we try to avoid that.
