Behaviour change after Alfaxalone in cats

42 reports to the FDA describe behaviour change in cats given Alfaxalone. That is 8.9% 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.

42Reports
45%Marked serious
21%Recovered
12%Died or euthanised
1 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
18 45%
1–2 days
16 40%
3–7 days
2 5.0%
1–4 weeks
1 2.5%
Over a month
3 7.5%

How the animals did

Recovered
9 21%
Still unwell when reported
15 36%
Died
3 7.1%
Euthanised
2 4.8%
Not known
13 31%

Problems reported at the same time

8 19%
Not sleeping
7 17%
Drooling
7 17%
Not drinking
5 12%

Age of the animals

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

About this medicine

Type: medicine.

Questions owners ask

Can Alfaxalone cause behaviour change in cats?
42 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).

Behaviour change with similar medicines

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