Neutrophilia after Rabies Vaccine in cats

The FDA has received 72 reports of neutrophilia in cats after Rabies Vaccine. That is 2.8% 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.

72Reports

71%Marked serious

29%Recovered

25%Died or euthanised

1 daysTypical onset

How soon it started

Same day

18 29%

1–2 days

20 32%

3–7 days

10 16%

1–4 weeks

11 17%

Over a month

4 6.3%

How the animals did

Recovered

20 28%

Recovered with lasting effects

1 1.4%

Still unwell when reported

22 31%

Died

6 8.3%

Euthanised

12 17%

Not known

11 15%

Problems reported at the same time

46 64%

37 51%

26 36%

23 32%

23 32%

21 29%

21 29%

21 29%

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 Rabies Vaccine cause neutrophilia in cats?: 72 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).

Neutrophilia with similar medicines

Neutrophilia after Feline Core Vaccine 56 reports · 3.6% of its reports
Neutrophilia after Feline Leukemia Vaccine 24 reports · 3.0% of its reports

All reported side effects of Rabies Vaccine in cats · Medicines most reported with neutrophilia