Deafness after Isoflurane in dogs

The FDA has received 21 reports of deafness in dogs after Isoflurane. That is 0.8% of all reports for this medicine, compared with 0.6% across reports for all dog medicines.

21Reports
48%Marked serious
14%Recovered
19%Died or euthanised
–Typical onset
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How the animals did

Recovered with lasting effects
3 14%
Still unwell when reported
3 14%
Died
2 9.5%
Euthanised
2 9.5%
Not known
11 52%

Problems reported at the same time

4 19%
Tympanic rupture
4 19%
Tympanic alteration
4 19%

Age of the animals

Under 1 year
1
1–3 years
1
4–7 years
2
8–11 years
7
12+ years
9

About this medicine

Type: medicine.

Questions owners ask

Can Isoflurane cause deafness in dogs?
21 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.
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).

Deafness with similar medicines

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