Weakness after Levetiracetam in dogs

33 reports to the FDA describe weakness in dogs given Levetiracetam. That is 4.9% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

33Reports
82%Marked serious
9.1%Recovered
30%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
4 21%
1–2 days
6 32%
3–7 days
1 5.3%
1–4 weeks
2 11%
Over a month
6 32%

How the animals did

Recovered
2 6.1%
Recovered with lasting effects
1 3.0%
Still unwell when reported
12 36%
Died
3 9.1%
Euthanised
7 21%
Not known
8 24%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
1
4–7 years
7
8–11 years
10
12+ years
14

About this medicine

Type: medicine.

Questions owners ask

Can Levetiracetam cause weakness in dogs?
33 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).

Weakness with similar medicines

All reported side effects of Levetiracetam in dogs · Medicines most reported with weakness