Hyperglycaemia after Feline Core Vaccine in cats

The FDA has received 75 reports of hyperglycaemia in cats after Feline Core Vaccine. That is 4.8% of all reports for this medicine, compared with 1.9% across reports for all cat medicines, so it is reported unusually often with this medicine.

75Reports

71%Marked serious

28%Recovered

25%Died or euthanised

8 daysTypical onset

How soon it started

Same day

10 15%

1–2 days

18 27%

3–7 days

4 6.0%

1–4 weeks

29 43%

Over a month

6 9.0%

How the animals did

Recovered

21 28%

Still unwell when reported

30 40%

Died

8 11%

Euthanised

11 15%

Not known

5 6.7%

Problems reported at the same time

43 57%

43 57%

36 48%

30 40%

19 25%

19 25%

18 24%

17 23%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: vaccine.

Mild, short-lived lethargy, soreness or a small lump at the injection site are the most commonly reported vaccine reactions.

Questions owners ask

Can Feline Core Vaccine cause hyperglycaemia in cats?: 75 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?: In half of the reports with dates, it started within 8 days of the first dose.
What should I do?: Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Hyperglycaemia with similar medicines

Hyperglycaemia after Rabies Vaccine 102 reports · 3.9% of its reports
Hyperglycaemia after Feline Leukemia Vaccine 31 reports · 3.9% of its reports

All reported side effects of Feline Core Vaccine in cats · Medicines most reported with hyperglycaemia