Pacing after Leptospirosis Vaccine in dogs

The FDA has received 37 reports of pacing in dogs after Leptospirosis Vaccine. That is 0.5% of all reports for this medicine, compared with 0.3% across reports for all dog medicines.

37Reports

65%Marked serious

27%Recovered

16%Died or euthanised

2 daysTypical onset

How soon it started

Same day

11 39%

1–2 days

6 21%

3–7 days

3 11%

1–4 weeks

3 11%

Over a month

5 18%

How the animals did

Recovered

10 27%

Still unwell when reported

15 41%

Euthanised

6 16%

Not known

6 16%

Problems reported at the same time

17 46%

14 38%

13 35%

11 30%

10 27%

8 22%

8 22%

Restlessness or agitation

7 19%

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 Leptospirosis Vaccine cause pacing in dogs?: 37 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 2 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).

Pacing with similar medicines

Pacing after Rabies Vaccine 46 reports · 0.5% of its reports
Pacing after Bordetella Vaccine 35 reports · 0.4% of its reports
Pacing after Distemper-parvo Vaccine 42 reports · 0.6% of its reports

All reported side effects of Leptospirosis Vaccine in dogs · Medicines most reported with pacing