Cardiac arrest after Ketamine in cats

The FDA has received 249 reports of cardiac arrest in cats after Ketamine. That is 7.7% of all reports for this medicine, compared with 0.8% across reports for all cat medicines, so it is reported unusually often with this medicine.

249Reports
46%Marked serious
6.8%Recovered
82%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
94 87%
1–2 days
10 9.3%
3–7 days
2 1.9%
1–4 weeks
1 0.9%
Over a month
1 0.9%

How the animals did

Recovered
17 6.8%
Still unwell when reported
5 2.0%
Died
199 80%
Euthanised
4 1.6%
Not known
24 9.6%

Problems reported at the same time

Age of the animals

Under 1 year
116
1–3 years
37
4–7 years
17
8–11 years
22
12+ years
16

About this medicine

Type: medicine.

Questions owners ask

Can Ketamine cause cardiac arrest in cats?
249 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).

Cardiac arrest with similar medicines

All reported side effects of Ketamine in cats · Medicines most reported with cardiac arrest