Tachycardia after Feline Core Vaccine in cats

32 reports to the FDA describe tachycardia in cats given Feline Core Vaccine. That is 2.1% of all reports for this medicine, compared with 0.7% across reports for all cat medicines, so it is reported unusually often with this medicine.

32Reports

81%Marked serious

38%Recovered

19%Died or euthanised

Same dayTypical onset

How soon it started

Same day

16 57%

1–2 days

6 21%

3–7 days

2 7.1%

1–4 weeks

3 11%

Over a month

1 3.6%

How the animals did

Recovered

12 38%

Still unwell when reported

11 34%

Died

1 3.1%

Euthanised

5 16%

Not known

3 9.4%

Problems reported at the same time

16 50%

15 47%

15 47%

11 34%

9 28%

9 28%

7 22%

6 19%

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 tachycardia in cats?: 32 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 the same 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).

Tachycardia with similar medicines

Tachycardia after Rabies Vaccine 60 reports · 2.3% of its reports

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