I emailed my vet about all this and this is what she said:
I am really sorry for the stress and confusion. I did receive your question about the B12, but not the other questions (or I missed them in the note); I believe Colleen was planning to call you back this afternoon since I was out of the office earlier this week. There isn’t a lot of firm research behind using B12 for neuropathy, but it certainly wouldn’t be harmful. The injectable is cheap - $24.60 for a large bottle (will last a year at least). You would start out with once weekly dosing.
If Yoshi is at 150 or less, do not give insulin. A curve on Friday is fine. If you start at 7:30, go until at least 2:30 in the afternoon. The insulin levels are likely to decrease after the morning dose, and at some point in the afternoon you will likely see them increase again as the insulin starts to wear off – this is normal and expected, although flat lines can happen too. You can stop the curve if you see the increase starting to happen earlier than 2:30pm.
Diabetes is a long-term management disease for cats, so unless you see numbers below 150, do not feel like you need to make rapid changes in dosing. Variable doses based on blood sugar readings are not necessary for all cats. We will decide on whether or not to reduce the dose based on the curve; typically we reduce by 0.5 to 1 unit per dose. Based on the spreadsheet, I think we will decrease Yoshi’s dose to 1 unit twice daily, since it seems like he is making progress.
I responded with:
Thank you for your response. Yes, I'd like the B12. Can I pick it up on Friday? Do I inject it like I do the insulin? Or do you think a pill form is better? I asked Colleen about the curve, but not about the insulin. He didn't drop really low until last night and this am.
So in essence, if he's at say 152 or 155, I am supposed to give him the full 2 units? This seems like a lot. He was in the 150's last night and I gave him 1 unit and he was at 140 something this am.
Whenever you get a chance.
Thought some of you would find this interesting, in case you wanted some afternoon reading...