Loss of appetite after Levetiracetam in dogs

The FDA has received 74 reports of loss of appetite in dogs after Levetiracetam. That is 11% of all reports for this medicine, compared with 8.4% across reports for all dog medicines.

74Reports
81%Marked serious
12%Recovered
31%Died or euthanised
13 daysTypical onset
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How soon it started

Same day
8 16%
1–2 days
14 27%
3–7 days
2 3.9%
1–4 weeks
6 12%
Over a month
21 41%

How the animals did

Recovered
8 11%
Recovered with lasting effects
1 1.4%
Still unwell when reported
26 35%
Died
8 11%
Euthanised
15 20%
Not known
16 22%

Problems reported at the same time

31 42%
30 41%
24 32%
23 31%
15 20%
13 18%
11 15%

Age of the animals

Under 1 year
1
1–3 years
7
4–7 years
19
8–11 years
23
12+ years
23

About this medicine

Type: medicine.

Questions owners ask

Can Levetiracetam cause loss of appetite in dogs?
74 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 13 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).

Loss of appetite with similar medicines

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