Vocalising after Isoflurane in dogs

The FDA has received 135 reports of vocalising in dogs after Isoflurane. That is 4.9% of all reports for this medicine, compared with 1.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

135Reports
48%Marked serious
53%Recovered
13%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
59 56%
1–2 days
22 21%
3–7 days
10 9.5%
1–4 weeks
5 4.8%
Over a month
9 8.6%

How the animals did

Recovered
66 49%
Recovered with lasting effects
5 3.7%
Still unwell when reported
20 15%
Died
9 6.7%
Euthanised
9 6.7%
Not known
26 19%

Problems reported at the same time

Age of the animals

Under 1 year
8
1–3 years
31
4–7 years
39
8–11 years
36
12+ years
6

About this medicine

Type: medicine.

Questions owners ask

Can Isoflurane cause vocalising in dogs?
135 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).

Vocalising with similar medicines

All reported side effects of Isoflurane in dogs · Medicines most reported with vocalising