Appetite loss after Bordetella Vaccine in dogs

The FDA has received 49 reports of appetite loss in dogs after Bordetella Vaccine. That is 0.5% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

49Reports
61%Marked serious
29%Recovered
16%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
15 35%
1–2 days
8 19%
3–7 days
9 21%
1–4 weeks
5 12%
Over a month
6 14%

How the animals did

Recovered
13 27%
Recovered with lasting effects
1 2.0%
Still unwell when reported
20 41%
Died
3 6.1%
Euthanised
5 10%
Not known
7 14%

Problems reported at the same time

Age of the animals

Under 1 year
7
1–3 years
13
4–7 years
11
8–11 years
10
12+ years
7

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 Bordetella Vaccine cause appetite loss in dogs?
49 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).

Appetite loss with similar medicines

All reported side effects of Bordetella Vaccine in dogs · Medicines most reported with appetite loss