Sedation after Isoflurane in cats

46 reports to the FDA describe sedation in cats given Isoflurane. That is 2.3% of all reports for this medicine, compared with 0.3% across reports for all cat medicines, so it is reported unusually often with this medicine.

46Reports

48%Marked serious

41%Recovered

8.7%Died or euthanised

Same dayTypical onset

How soon it started

Same day

32 71%

1–2 days

8 18%

3–7 days

3 6.7%

1–4 weeks

0 0.0%

Over a month

2 4.4%

How the animals did

Recovered

19 41%

Still unwell when reported

10 22%

Died

3 6.5%

Euthanised

1 2.2%

Not known

13 28%

Problems reported at the same time

12 26%

10 22%

10 22%

9 20%

7 15%

7 15%

7 15%

6 13%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Isoflurane cause sedation in cats?: 46 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).

Sedation with similar medicines

Sedation after Ketamine 44 reports · 1.4% of its reports
Sedation after Butorphanol 38 reports · 1.7% of its reports
Sedation after Propofol 28 reports · 2.4% of its reports
Sedation after Atipamezole 20 reports · 1.9% of its reports
Sedation after Midazolam 22 reports · 2.9% of its reports

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