Seizures after Ketoconazole in dogs

The FDA has received 82 reports of seizures in dogs after Ketoconazole. That is 3.6% of all reports for this medicine, compared with 4.4% across reports for all dog medicines.

82Reports
91%Marked serious
35%Recovered
20%Died or euthanised
8 daysTypical onset
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How soon it started

Same day
16 22%
1–2 days
10 14%
3–7 days
10 14%
1–4 weeks
22 31%
Over a month
14 19%

How the animals did

Recovered
28 34%
Recovered with lasting effects
1 1.2%
Still unwell when reported
24 29%
Died
8 9.8%
Euthanised
8 9.8%
Not known
13 16%

Problems reported at the same time

Age of the animals

Under 1 year
3
1–3 years
10
4–7 years
30
8–11 years
23
12+ years
16

About this medicine

Type: medicine.

Questions owners ask

Can Ketoconazole cause seizures in dogs?
82 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).

Seizures with similar medicines

All reported side effects of Ketoconazole in dogs · Medicines most reported with seizures