Hi I am so glad to have found this forum while Googling cat with diabetes urinating everywhere ! I took my 14 year old BB cat to the vet 05/18 after she peed in her heated bed right in front of me, and they found glucose in her urine. We started her on Glipizide 2.5 mg twice a day and on vets orders switched her to Science Diet Prescription w/d cat food. They did not take a blood sample so we watched a YouTube video and pricked my sweet patient girls ear ourselves. On 05/19 she was at 336 about 2 hours after eating and taking her first dose of Glipizide. On 05/20 she started peeing on every rug in our house. So I have read some and am switching her to Friskie Pate tomorrow ( am pretty annoyed the vet would have recommended such a high carb food). She is due back in a week will being on Glipizide short term harm her?