My cat, Munchie, was diagnosed 1.5 months ago. We began with 1 unit of prozinc twice a day, then the vet upped us to 2 units as his numbers were steadily in the 200's ... and the people here suggested that was too high of a bump, to make it more gradual.. so I am giving him 1.5 units twice a day. He eats classic fancy feast, at least 3 cans a day but lately he isn't finishing his 1/2 can feedings (morning and evenings before insulin he eats 1 full can, with 2-3 servings of 1/2 a can throughout the day/night). Yesterday Munchie's numbers were over 600 (my reLion meter just says hi if it's over 600) and then I managed to get him to 323 by the evening, and then this morning he was at 507. I left the prozinc out for just over 2 hours a couple weeks ago- is it possible that it's no longer effective? he has been peeing outside of his liter box every single day, at least once a day, for about a week. I'm not sure what's going on or what could be happening, looking for any advice and help I can get - thanks!