Not drinking after Feline Leukemia Vaccine in cats

The FDA has received 39 reports of not drinking in cats after Feline Leukemia Vaccine. That is 4.9% of all reports for this medicine, compared with 1.1% across reports for all cat medicines, so it is reported unusually often with this medicine.

39Reports

54%Marked serious

38%Recovered

18%Died or euthanised

1 daysTypical onset

How soon it started

Same day

13 37%

1–2 days

15 43%

3–7 days

1 2.9%

1–4 weeks

3 8.6%

Over a month

3 8.6%

How the animals did

Recovered

14 36%

Recovered with lasting effects

1 2.6%

Still unwell when reported

14 36%

Died

3 7.7%

Euthanised

4 10%

Not known

3 7.7%

Problems reported at the same time

38 97%

25 64%

15 38%

10 26%

9 23%

6 15%

Reluctant to move

6 15%

Death

6 15%

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 Leukemia Vaccine cause not drinking in cats?: 39 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).

Not drinking with similar medicines

Not drinking after Rabies Vaccine 116 reports · 4.5% of its reports
Not drinking after Feline Core Vaccine 71 reports · 4.6% of its reports

All reported side effects of Feline Leukemia Vaccine in cats · Medicines most reported with not drinking