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My dog's blood sugar is high even with insulin. What should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Beagle | Female | unspayed | 35 lbs

Hi, I have a beagle female, 10 years old. A year ago was diagnosed with diabetes, she is blind, have cataracts. We pass vet to vet, and caninsulin doesn’t work, we try put once per day, twice, and multiple times per day. Even 60 units of caninsulin and her blood sugar never down of 400, weighs 16 kilos, I attach the photo of her last blood tests, are in Spanish, I’m from Mexico. Thank you so much.

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1 Answer

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Answered By Maria DVM

Veterinarian

Published on October 23rd, 2018

How are you checking the blood sugar? Are you doing glucose curves, which is every 2 hours checking the insulin. If not I would do this and see are we giving too much insulin making the blood glucose rebound or maybe not enough. You might want to discuss this with your veterinarian. I would also discuss the possibility of having something called Cushings Disease which make diabetes difficult to control. First I would recommend a glucose curve. I would discuss diet with your veterinarian, since diets will help regulate the glucose also. Thank you for using Petco Pet Education Center, formerly Petcoach.

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