Seizures after Ketamine in cats

169 reports to the FDA describe seizures in cats given Ketamine. That is 5.2% of all reports for this medicine, compared with 2.6% across reports for all cat medicines, so it is reported unusually often with this medicine.

169Reports
59%Marked serious
29%Recovered
24%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
75 75%
1–2 days
19 19%
3–7 days
3 3.0%
1–4 weeks
3 3.0%
Over a month
0 0.0%

How the animals did

Recovered
47 28%
Recovered with lasting effects
2 1.2%
Still unwell when reported
25 15%
Died
27 16%
Euthanised
14 8.3%
Not known
54 32%

Problems reported at the same time

Age of the animals

Under 1 year
51
1–3 years
45
4–7 years
22
8–11 years
9
12+ years
6

About this medicine

Type: medicine.

Questions owners ask

Can Ketamine cause seizures in cats?
169 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 the same day 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 Ketamine in cats · Medicines most reported with seizures