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Why isn't my diabetic cat with herpes better after a week on insulin?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Mediumhair | Male | neutered | 11 years and 11 months old | 11 lbs

Why isn’t my cat feeling better after a week on insulin? His diet was changed, insulin x2 at 2ml of prozinc. My cat also has feline herpes which lead us to take him to the vet. Azthroymicin didn’t work and he was than given blood work. CBC, chem 7 and glucose. My cat is my soul mate and I want to make sure I am doing everything I could. Glucose levels showed diabetes.. 370. After a week of the insulin, ending a second round of antibiotics (begins with a V)... we started doing glucose testing

1 Answer

Most Helpful Answer

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Answered By Sara Farmer, DVM

Veterinarian

Published on September 5th, 2018

Herpes can be difficult to get under control and it is not uncommon for cats with a history of herpes to develop secondary infections during times of stress. If Gizmo is still having nasal discharge or eye problems after two rounds of antibiotics you may want to ask your vet about additional testing or referral to a specialist for advanced testing like a CT or rhinoscopy. It can also take some time to regulate diabetes and not all cats are well controlled on the same dose of insulin. As long as Gizmo isn’t showing signs of hypoglycemia its best to give the current insulin dose time to reach equilibrium and then test the glucose again to see if the dose needs to be adjusted. This is typically done every 1-2 weeks.

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