Itching after Cetirizine in dogs

68 reports to the FDA describe itching in dogs given Cetirizine. That is 10% of all reports for this medicine, compared with 4.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

68Reports
41%Marked serious
24%Recovered
1.5%Died or euthanised
19 daysTypical onset
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How soon it started

Same day
11 25%
1–2 days
6 14%
3–7 days
2 4.5%
1–4 weeks
9 20%
Over a month
16 36%

How the animals did

Recovered
14 21%
Recovered with lasting effects
2 2.9%
Still unwell when reported
31 46%
Died
1 1.5%
Not known
20 29%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
15
4–7 years
28
8–11 years
16
12+ years
7

About this medicine

Type: medicine.

Questions owners ask

Can Cetirizine cause itching in dogs?
68 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 19 days of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Itching with similar medicines

All reported side effects of Cetirizine in dogs · Medicines most reported with itching