Alfaxalone side effects in cats

471 reports sent to the FDA between 2014 and 2026 involve Alfaxalone in cats. The most reported problems were loss of appetite, lethargy, behaviour change. 51% were marked serious, and where it was recorded, signs eased after stopping the medicine in 37% of cases.

471Reports
51%Marked serious
7.9%Only medicine involved
40%Recovered
17%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a cat still getting fleas or heartworm), not about a side effect.

How soon problems started

Same day
278 64%
1–2 days
78 18%
3–7 days
34 7.8%
1–4 weeks
21 4.8%
Over a month
23 5.3%

Time from the first dose to the first sign, where both dates were reported (434 reports).

How the animals did

Recovered
188 40%
Recovered with lasting effects
1 0.2%
Still unwell when reported
127 27%
Died
55 12%
Euthanised
26 5.5%
Not known
74 16%

Breeds named most often

Popular breeds appear more often because there are more of them.

Other medicines for cats