Vocalising after Feline Core Vaccine in cats

The FDA has received 49 reports of vocalising in cats after Feline Core Vaccine. That is 3.2% of all reports for this medicine, compared with 3.1% across reports for all cat medicines.

49Reports

63%Marked serious

33%Recovered

27%Died or euthanised

1 daysTypical onset

How soon it started

Same day

23 48%

1–2 days

6 13%

3–7 days

5 10%

1–4 weeks

10 21%

Over a month

4 8.3%

How the animals did

Recovered

15 31%

Recovered with lasting effects

1 2.0%

Still unwell when reported

16 33%

Died

6 12%

Euthanised

7 14%

Not known

4 8.2%

Problems reported at the same time

22 45%

22 45%

15 31%

15 31%

13 27%

13 27%

13 27%

11 22%

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 vocalising in cats?: 49 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 1 day 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).

Vocalising with similar medicines

Vocalising after Rabies Vaccine 106 reports · 4.1% of its reports
Vocalising after Feline Leukemia Vaccine 32 reports · 4.0% of its reports

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