Falling after Leptospirosis Vaccine in dogs

The FDA has received 59 reports of falling in dogs after Leptospirosis Vaccine. That is 0.7% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

59Reports
73%Marked serious
19%Recovered
20%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
13 25%
1–2 days
8 15%
3–7 days
10 19%
1–4 weeks
8 15%
Over a month
13 25%

How the animals did

Recovered
10 17%
Recovered with lasting effects
1 1.7%
Still unwell when reported
21 36%
Died
8 14%
Euthanised
4 6.8%
Not known
15 25%

Problems reported at the same time

Age of the animals

Under 1 year
14
1–3 years
7
4–7 years
14
8–11 years
11
12+ years
12

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 falling in dogs?
59 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 6 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).

Falling with similar medicines

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