Cetirizine side effects in dogs

663 reports sent to the FDA between 2011 and 2026 involve Cetirizine in dogs. The most reported problems were vomiting, lethargy, loss of appetite. 33% were marked serious, and where it was recorded, signs eased after stopping the medicine in 40% of cases.

663Reports
33%Marked serious
0.2%Only medicine involved
33%Recovered
5.1%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 dog still getting fleas or heartworm), not about a side effect.

Didn't stop fleas
19 2.9%
Didn't prevent heartworm
12 1.8%
Didn't stop worms
6 0.9%
Didn't stop ticks
1 0.2%

How soon problems started

Same day
85 20%
1–2 days
28 6.5%
3–7 days
29 6.7%
1–4 weeks
63 15%
Over a month
225 52%

Time from the first dose to the first sign, where both dates were reported (430 reports).

How the animals did

Recovered
206 31%
Recovered with lasting effects
13 2.0%
Still unwell when reported
252 38%
Died
14 2.1%
Euthanised
20 3.0%
Not known
158 24%

Breeds named most often

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

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