Cosequin side effects in cats

55 reports sent to the FDA between 2012 and 2025 involve Cosequin in cats. The most reported problems were itching, loss of appetite, hair loss. 69% were marked serious.

55Reports
69%Marked serious
0.0%Only medicine involved
11%Recovered
13%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Itching
15 27%
Loss of appetite
11 20%
Hair loss
11 20%
Vomiting
8 15%
Lethargy
7 13%
Skin scab
7 13%
Skin rash or irritation
7 13%
Wobbliness (ataxia)
6 11%
Weight loss
6 11%
Lameness
5 9.1%
Kidney problems
5 9.1%
Vocalising
4 7.3%
Behaviour change
4 7.3%
Tremors
3 5.5%
Not drinking
3 5.5%

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
3 5.5%

How soon problems started

Same day
7 15%
1–2 days
5 11%
3–7 days
4 8.5%
1–4 weeks
10 21%
Over a month
21 45%

Time from the first dose to the first sign, where both dates were reported (47 reports).

How the animals did

Recovered
6 11%
Still unwell when reported
38 69%
Died
2 3.6%
Euthanised
5 9.1%
Not known
4 7.3%

Breeds named most often

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

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