Lethargy after Bordetella Vaccine in dogs

2,356 reports to the FDA describe lethargy in dogs given Bordetella Vaccine. That is 25% of all reports for this medicine, compared with 11% across reports for all dog medicines, so it is reported unusually often with this medicine.

2,356Reports
67%Marked serious
31%Recovered
14%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
1,042 49%
1–2 days
418 19%
3–7 days
222 10%
1–4 weeks
229 11%
Over a month
233 11%

How the animals did

Recovered
707 30%
Recovered with lasting effects
35 1.5%
Still unwell when reported
1,011 43%
Died
158 6.7%
Euthanised
179 7.6%
Not known
266 11%

Problems reported at the same time

Age of the animals

Under 1 year
350
1–3 years
805
4–7 years
602
8–11 years
398
12+ years
190

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 lethargy in dogs?
2,356 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).

Lethargy with similar medicines

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