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Why is my diabetic cat's blood sugar high and not responding to insulin?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 11 years and 1 month old | 9 lbs

My female, 11 y/o cat is a diabetic. She takes Prozinc. I follow tight regulation protocol. She was knocked out of remission in January due to tooth resorption. Lately, her insulin does not regulate her BG levels more than about 6 hours. Over the last few days, slightly increased lethargy and a couple episodes of vomiting after eating. (Vomits hair balls rather frequently). i have an appointment for her June 12. Diet is low carb wet food only. Any suggestions what might be elevating her BG?

1 Answer

Most Helpful Answer

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Answered By Lindsey Edwards MVB, BSc, IVCA

Veterinarian

Published on May 29th, 2017

Please try to bring her appointment forward to get her rechecked and her blood sugar levels controlled more effectively if possible. It may be necessary to change her insulin type but she should also be checked for infections/inflammation etc which may be altering her ability to regulate her condition

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