Wobbliness (ataxia) after Isoflurane in dogs

81 reports to the FDA describe wobbliness (ataxia) in dogs given Isoflurane. That is 2.9% of all reports for this medicine, compared with 2.6% across reports for all dog medicines.

81Reports
67%Marked serious
30%Recovered
15%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
39 57%
1–2 days
17 25%
3–7 days
5 7.4%
1–4 weeks
3 4.4%
Over a month
4 5.9%

How the animals did

Recovered
23 28%
Recovered with lasting effects
1 1.2%
Still unwell when reported
27 33%
Died
6 7.4%
Euthanised
6 7.4%
Not known
18 22%

Problems reported at the same time

Age of the animals

Under 1 year
7
1–3 years
20
4–7 years
25
8–11 years
22
12+ years
4

About this medicine

Type: medicine.

Questions owners ask

Can Isoflurane cause wobbliness (ataxia) in dogs?
81 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).

Wobbliness (ataxia) with similar medicines

All reported side effects of Isoflurane in dogs · Medicines most reported with wobbliness (ataxia)