Lethargy after Ketamine in dogs

The FDA has received 193 reports of lethargy in dogs after Ketamine. That is 10% of all reports for this medicine, compared with 11% across reports for all dog medicines.

193Reports
62%Marked serious
20%Recovered
32%Died or euthanised
3 daysTypical onset
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How soon it started

Same day
31 22%
1–2 days
34 24%
3–7 days
32 23%
1–4 weeks
22 16%
Over a month
22 16%

How the animals did

Recovered
37 19%
Recovered with lasting effects
1 0.5%
Still unwell when reported
59 31%
Died
29 15%
Euthanised
33 17%
Not known
34 18%

Problems reported at the same time

Age of the animals

Under 1 year
19
1–3 years
47
4–7 years
46
8–11 years
45
12+ years
28

About this medicine

Type: medicine.

Questions owners ask

Can Ketamine cause lethargy in dogs?
193 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 3 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).

Lethargy with similar medicines

All reported side effects of Ketamine in dogs · Medicines most reported with lethargy