Vomiting after Zonisamide in dogs

53 reports to the FDA describe vomiting in dogs given Zonisamide. That is 17% of all reports for this medicine, compared with 28% across reports for all dog medicines, so it is reported less often than average with this medicine.

53Reports
55%Marked serious
32%Recovered
21%Died or euthanised
8 daysTypical onset
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How soon it started

Same day
6 20%
1–2 days
5 17%
3–7 days
4 13%
1–4 weeks
4 13%
Over a month
11 37%

How the animals did

Recovered
17 32%
Still unwell when reported
12 23%
Died
6 11%
Euthanised
5 9.4%
Not known
13 25%

Problems reported at the same time

18 34%
15 28%
13 25%
11 21%
10 19%
Breathing problems
8 15%

Age of the animals

Under 1 year
1
1–3 years
9
4–7 years
12
8–11 years
17
12+ years
13

About this medicine

Type: medicine.

Questions owners ask

Can Zonisamide cause vomiting in dogs?
53 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 8 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).

Vomiting with similar medicines

All reported side effects of Zonisamide in dogs · Medicines most reported with vomiting