Hiding after Isoflurane in cats

86 reports to the FDA describe hiding in cats given Isoflurane. That is 4.2% of all reports for this medicine, compared with 2.4% across reports for all cat medicines, so it is reported unusually often with this medicine.

86Reports
27%Marked serious
28%Recovered
12%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
46 55%
1–2 days
24 29%
3–7 days
5 6.0%
1–4 weeks
5 6.0%
Over a month
4 4.8%

How the animals did

Recovered
24 28%
Still unwell when reported
36 42%
Died
6 7.0%
Euthanised
4 4.7%
Not known
16 19%

Problems reported at the same time

Age of the animals

Under 1 year
7
1–3 years
15
4–7 years
11
8–11 years
31
12+ years
21

About this medicine

Type: medicine.

Questions owners ask

Can Isoflurane cause hiding in cats?
86 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).

Hiding with similar medicines

All reported side effects of Isoflurane in cats · Medicines most reported with hiding