Behaviour change after Anesthesia Gas in cats

The FDA has received 23 reports of behaviour change in cats after Anesthesia Gas. That is 17% of all reports for this medicine, compared with 5.4% across reports for all cat medicines, so it is reported unusually often with this medicine.

23Reports
13%Marked serious
52%Recovered
4.3%Died or euthanised
Same dayTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
14 61%
1–2 days
5 22%
3–7 days
2 8.7%
1–4 weeks
1 4.3%
Over a month
1 4.3%

How the animals did

Recovered
12 52%
Still unwell when reported
6 26%
Died
1 4.3%
Not known
4 17%

Problems reported at the same time

Dilated pupils
7 30%
Vocalising
4 17%
Lethargy
4 17%
Not sleeping
4 17%
Dysphoria
4 17%
Not drinking
3 13%

Age of the animals

Under 1 year
6
1–3 years
1
4–7 years
3
8–11 years
7
12+ years
2

About this medicine

Type: medicine.

Questions owners ask

Can Anesthesia Gas cause behaviour change in cats?
23 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).

Behaviour change with similar medicines

All reported side effects of Anesthesia Gas in cats · Medicines most reported with behaviour change