Morning, Jan!
The normal drill for Lantus is:
- Lift all food for two hours before the next dose is due. (This will be is a critical step when you start home testing, because you need to have a fasting BG reading before giving insulin.)
- Test BG levels just before dose is due. (This is a preshot (PS) blood glucose check. Not applicable to you yet, just giving you a heads-up on where testing fits in.

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- Feed Squeaky. With Lantus, he does need a reasonable amount of food at the beginning of each 12-hour cycle but it's OK for him to have some small meals after that because Lantus is a long-acting insulin*. If there are no digestive or other issues, it's recommended that he eats most, if not all, of his grub for the 12-hour cycle in the first 6 hours (while the dose is more active).
- If Squeaky eats OK and you're confident he'll eat well for the next 12 hours, then you can go ahead and administer the Lantus dose.
You may often see this routine referred to here as 'Test, Feed, Shoot'.
Tell Squeaky thank you for the purrs!
Mogs
(* For general information, it is necesary to feed quite a substantial meal and wait a while before giving insulin when treating a cat with intermediate-acting insulins like Caninsulin because they hit hard and fast not long after administration and typically peter out several hours before the next dose is due.)
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