Lateral recumbency after Isoflurane in cats

36 reports to the FDA describe lateral recumbency in cats given Isoflurane. That is 1.8% of all reports for this medicine, compared with 0.5% across reports for all cat medicines, so it is reported unusually often with this medicine.

36Reports

75%Marked serious

31%Recovered

56%Died or euthanised

1 daysTypical onset

How soon it started

Same day

16 48%

1–2 days

9 27%

3–7 days

3 9.1%

1–4 weeks

3 9.1%

Over a month

2 6.1%

How the animals did

Recovered

11 31%

Still unwell when reported

1 2.8%

Died

14 39%

Euthanised

6 17%

Not known

4 11%

Problems reported at the same time

20 56%

15 42%

14 39%

12 33%

11 31%

10 28%

8 22%

7 19%

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 lateral recumbency in cats?: 36 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 1 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).

Lateral recumbency with similar medicines

Lateral recumbency after Ketamine 35 reports · 1.1% of its reports
Lateral recumbency after Butorphanol 27 reports · 1.2% of its reports
Lateral recumbency after Methylprednisolone 21 reports · 1.3% of its reports
Lateral recumbency after Propofol 20 reports · 1.7% of its reports

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