While it is true that you "shoot low to stay low" also with lev, you don't want to be doing that without data - meaning, the first time you get a much lower number either be home and test often or reduce a bit until you can catch the low PS when you are home.
There are do not shoot numbers with lev, but they will vary by cat. I have seen people shoot hull doses on PS's in the 80s and have the cat be fine with it, but I could not do that with Beau. Even when he was on .05u I had a do not shoot number of about 130. Again - finding those numbers is based on the data you are collecting.
You can set a do not shoot number based on your data and comfort level and slowly lower it as you test out how well your cat does - and/or reduce the dose and slowly bring it back up as data dictates. You don't want to be trying for a sliding scale-type thing. If you have PSs that swing from higher to lower, then a dose reduction is probably needed overall, not just on the low PS.
I have seen some shoot at numbers that I think are dangerous to give insulin on - like the 50s - and I feel that to shoot any insulin below 80 is risky, but if you had the data that says your cat will rise into the low 100s, surf there and then drop back to the 80s, then it would be ok, especially on lower doses.
Dale 'n' Chip said:
But unlike with Lantus, the Levemir nadirs never seem to run together from opposing directions.
I don't know what that means.
I found that the higher the dose the earlier the nadir with lev, but lev seems to nadir later in a lot of cats - like +8 give or take.