Diarrhea after Lyme Vaccine in dogs

341 reports to the FDA describe diarrhea in dogs given Lyme Vaccine. That is 4.9% of all reports for this medicine, compared with 8.4% across reports for all dog medicines, so it is reported less often than average with this medicine.

341Reports
54%Marked serious
29%Recovered
8.8%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
132 43%
1–2 days
73 24%
3–7 days
25 8.2%
1–4 weeks
33 11%
Over a month
41 13%

How the animals did

Recovered
99 29%
Still unwell when reported
151 44%
Died
9 2.6%
Euthanised
21 6.2%
Not known
61 18%

Problems reported at the same time

Age of the animals

Under 1 year
81
1–3 years
131
4–7 years
54
8–11 years
54
12+ years
19

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 Lyme Vaccine cause diarrhea in dogs?
341 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).

Diarrhea with similar medicines

All reported side effects of Lyme Vaccine in dogs · Medicines most reported with diarrhea