Fever after Sevoflurane in cats

40 reports to the FDA describe fever in cats given Sevoflurane. That is 10% of all reports for this medicine, compared with 3.2% across reports for all cat medicines, so it is reported unusually often with this medicine.

40Reports
43%Marked serious
43%Recovered
7.5%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
20 69%
1–2 days
7 24%
3–7 days
0 0.0%
1–4 weeks
1 3.4%
Over a month
1 3.4%

How the animals did

Recovered
17 43%
Still unwell when reported
14 35%
Died
2 5.0%
Euthanised
1 2.5%
Not known
6 15%

Problems reported at the same time

Increased respiratory rate
5 13%
3 7.5%
3 7.5%

Age of the animals

Under 1 year
13
1–3 years
9
4–7 years
7
8–11 years
8
12+ years
2

About this medicine

Type: medicine.

Questions owners ask

Can Sevoflurane cause fever in cats?
40 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).

Fever with similar medicines

All reported side effects of Sevoflurane in cats · Medicines most reported with fever