Ketoconazole side effects in cats

92 reports sent to the FDA between 2006 and 2026 involve Ketoconazole in cats. The most reported problems were loss of appetite, wobbliness (ataxia), itching. 61% were marked serious.

92Reports
61%Marked serious
2.2%Only medicine involved
15%Recovered
5.4%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Itching
16 17%
Horner's syndrome
16 17%
Third eyelid protrusion
14 15%
Weight loss
12 13%
Anisocoria
12 13%
Head tilt - ear disorder
11 12%
Behaviour change
10 11%
Hair loss
10 11%
Vomiting
9 9.8%
Application site reaction
9 9.8%
Hiding
8 8.7%
Head shake - ear disorder
8 8.7%
Lethargy
8 8.7%

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
9 9.8%
Didn't stop mites
3 3.3%

How soon problems started

Same day
28 34%
1–2 days
22 27%
3–7 days
7 8.4%
1–4 weeks
12 14%
Over a month
14 17%

Time from the first dose to the first sign, where both dates were reported (83 reports).

How the animals did

Recovered
11 12%
Recovered with lasting effects
3 3.3%
Still unwell when reported
17 18%
Died
1 1.1%
Euthanised
4 4.3%
Not known
56 61%

Breeds named most often

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

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