Tremors after Ketamine in cats

The FDA has received 84 reports of tremors in cats after Ketamine. That is 2.6% of all reports for this medicine, compared with 2.6% across reports for all cat medicines.

84Reports
36%Marked serious
19%Recovered
15%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
39 74%
1–2 days
9 17%
3–7 days
1 1.9%
1–4 weeks
4 7.5%
Over a month
0 0.0%

How the animals did

Recovered
16 19%
Still unwell when reported
23 27%
Died
7 8.3%
Euthanised
6 7.1%
Not known
32 38%

Problems reported at the same time

Age of the animals

Under 1 year
43
1–3 years
23
4–7 years
6
8–11 years
3
12+ years
4

About this medicine

Type: medicine.

Questions owners ask

Can Ketamine cause tremors in cats?
84 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).

Tremors with similar medicines

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