Weight loss after Bordetella Vaccine in dogs

272 reports to the FDA describe weight loss in dogs given Bordetella Vaccine. That is 2.9% of all reports for this medicine, compared with 1.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

272Reports
77%Marked serious
11%Recovered
24%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
43 20%
1–2 days
50 23%
3–7 days
35 16%
1–4 weeks
40 18%
Over a month
52 24%

How the animals did

Recovered
21 7.7%
Recovered with lasting effects
10 3.7%
Still unwell when reported
131 48%
Died
18 6.6%
Euthanised
48 18%
Not known
44 16%

Problems reported at the same time

Age of the animals

Under 1 year
21
1–3 years
77
4–7 years
83
8–11 years
64
12+ years
27

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 weight loss in dogs?
272 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 4 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).

Weight loss with similar medicines

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