Hyperphosphataemia after Rabies Vaccine in cats

36 reports to the FDA describe hyperphosphataemia in cats given Rabies Vaccine. That is 1.4% of all reports for this medicine, compared with 1.0% across reports for all cat medicines.

36Reports

86%Marked serious

8.3%Recovered

44%Died or euthanised

6 daysTypical onset

How soon it started

Same day

4 13%

1–2 days

10 32%

3–7 days

6 19%

1–4 weeks

7 23%

Over a month

4 13%

How the animals did

Recovered

3 8.3%

Still unwell when reported

10 28%

Died

6 17%

Euthanised

10 28%

Not known

7 19%

Problems reported at the same time

31 86%

23 64%

18 50%

17 47%

17 47%

16 44%

14 39%

12 33%

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 hyperphosphataemia in cats?: 36 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 6 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).

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