Unspecified side effects in cats

76 reports sent to the FDA between 2011 and 2025 involve Unspecified in cats. The most reported problems were loss of appetite, lethargy, hair loss. 37% were marked serious.

76Reports
37%Marked serious
29%Only medicine involved
14%Recovered
18%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Lethargy
18 24%
Hair loss
16 21%
Vomiting
15 20%
Itching
11 14%
Behaviour change
10 13%
Weight loss
8 11%
Application site reaction
8 11%
Liver problems
6 7.9%
Diarrhea
5 6.6%
Breathing problems
5 6.6%
Kidney problems
5 6.6%
Not drinking
5 6.6%
Restlessness or agitation
5 6.6%
Wobbliness (ataxia)
5 6.6%

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.

Didn't work as expected
7 9.2%
Didn't stop fleas
6 7.9%
Didn't stop worms
2 2.6%
Didn't stop mites
1 1.3%

How soon problems started

Same day
17 27%
1–2 days
19 30%
3–7 days
7 11%
1–4 weeks
16 25%
Over a month
5 7.8%

Time from the first dose to the first sign, where both dates were reported (64 reports).

How the animals did

Recovered
11 14%
Still unwell when reported
21 28%
Died
8 11%
Euthanised
6 7.9%
Not known
30 39%

Breeds named most often

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

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