Swelling after Isoflurane in dogs

286 reports to the FDA describe swelling in dogs given Isoflurane. That is 10% of all reports for this medicine, compared with 2.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

286Reports
53%Marked serious
30%Recovered
13%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
144 63%
1–2 days
26 11%
3–7 days
36 16%
1–4 weeks
16 7.0%
Over a month
8 3.5%

How the animals did

Recovered
84 29%
Recovered with lasting effects
1 0.3%
Still unwell when reported
85 30%
Died
19 6.6%
Euthanised
19 6.6%
Not known
78 27%

Problems reported at the same time

Age of the animals

Under 1 year
55
1–3 years
65
4–7 years
79
8–11 years
60
12+ years
21

About this medicine

Type: medicine.

Questions owners ask

Can Isoflurane cause swelling in dogs?
286 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).

Swelling with similar medicines

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