Please make sure that there is always food on board before you inject this insulin. Schedule is best with test, feed, shoot, within about 30 minutes
You will read a lot about the benefits of a low carb diet and it is true. However, please do not make any quick changes from what you are currently feeding until you are testing and have some data.
A low carb diet can dramatically decrease the amount of insulin needed. Be prepared with data and know your onset, peak and duration before making those diet changes. Dr. Lisa has a great site with info on the role diet and diabetes play..
http://www.catinfo.org/
A feeding schedule as follows has served many very well. "Every Cat Is Different" though so tweaking to suit your cat's needs is always encouraged once you gather some info. This is based on a BID shooting schedule of 7:00am and 7:00pm.
If you must leave the house, (once again that darn life gets in the way) a timed feeder or freezing "pucks" of canned food to thaw for that snack can really help.
6:30am
-20-30 minutes prior to shot, test and give 2/3 breakfast , ideally a low carb canned food, please refer to Janet and Binky's food charts.
http://binkyspage.tripod.com/index.html
7:00am
-give insulin dose,
(if test showed numbers under 180, refer to faq 4.4
http://www.felinediabetes.com/fdmb-faq.htm and ask members of the board for advice, cross posting on health)
8:30am-9:00am
-1 and 1/2 hours later or what we refer to as "+1.5", or 2 hours later, +2, offer a snack of 1/3 breakfast...(As the insulin works to lower the blood glucose, offering a snack will help balance a drop that is happening too fast.)
*edited-
I have changed the snack times to a little earlier than original post of +2.5, as have seen many with fast onset of this insulin and the need to have that snack in this +1.5 to +2 hours area to balance the drop more effectively.
~spot check through out the day (test) as you can eg: 1 hour after shot, 3 hours, 5 hours after shot and right through 10 hours after shot.
This does not have to happen all in the first day though , you can spread this out and many of us need to work ( I know it feels like managing this syndrome is already a full time job) and we do this in the evening and on weekends.
7:00pm repeat
The spot checks will show you when the insulin starts to work "onset", when it is peaking "nadir" and how long it is lasting in your cat's system " duration"
With that info you can move the snack up or down as necessary to avoid food spikes and to support the dropping blood glucose.
* Important note;
If your cat is recovering from DKA or other issues that involve a weakened liver, please note that extra calories are necessary for that liver to heal and you should be feeding when hungry and/or as advised by the Vet.