Elevated haematocrit after Rabies Vaccine in dogs

37 reports to the FDA describe elevated haematocrit in dogs given Rabies Vaccine. That is 0.4% of all reports for this medicine, compared with 0.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

37Reports

81%Marked serious

8.1%Recovered

11%Died or euthanised

5 daysTypical onset

How soon it started

Same day

13 43%

1–2 days

1 3.3%

3–7 days

2 6.7%

1–4 weeks

5 17%

Over a month

9 30%

How the animals did

Recovered

3 8.1%

Still unwell when reported

17 46%

Died

3 8.1%

Euthanised

1 2.7%

Not known

13 35%

Problems reported at the same time

23 62%

20 54%

17 46%

14 38%

13 35%

10 27%

9 24%

8 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 Rabies Vaccine cause elevated haematocrit in dogs?: 37 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 5 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).

Elevated haematocrit with similar medicines

Elevated haematocrit after Bordetella Vaccine 37 reports · 0.4% of its reports
Elevated haematocrit after Leptospirosis Vaccine 28 reports · 0.3% of its reports

All reported side effects of Rabies Vaccine in dogs · Medicines most reported with elevated haematocrit