Naloxone side effects in cats

96 reports sent to the FDA between 2016 and 2026 involve Naloxone in cats. The most reported problems were loss of appetite, behaviour change, lethargy. 79% were marked serious.

96Reports
79%Marked serious
0.0%Only medicine involved
26%Recovered
42%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

24 25%
Breathing problems
19 20%
Hypothermia
18 19%
Restlessness or agitation
17 18%
Kidney problems
16 17%
Dysphoria
16 17%
Fever
15 16%
Eye or vision problems
15 16%
Wobbliness (ataxia)
15 16%
Vocalising
14 15%
Liver problems
14 15%
Lateral recumbency
12 13%

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

How soon problems started

Same day
63 67%
1–2 days
20 21%
3–7 days
6 6.4%
1–4 weeks
3 3.2%
Over a month
2 2.1%

Time from the first dose to the first sign, where both dates were reported (94 reports).

How the animals did

Recovered
25 26%
Still unwell when reported
24 25%
Died
22 23%
Euthanised
18 19%
Not known
7 7.3%

Breeds named most often

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

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