Itching after Hydroxyzine in dogs

85 reports to the FDA describe itching in dogs given Hydroxyzine. That is 8.2% 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.

85Reports
33%Marked serious
38%Recovered
1.2%Died or euthanised
23 daysTypical onset
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How soon it started

Same day
9 19%
1–2 days
5 10%
3–7 days
2 4.2%
1–4 weeks
12 25%
Over a month
20 42%

How the animals did

Recovered
20 24%
Recovered with lasting effects
12 14%
Still unwell when reported
29 34%
Euthanised
1 1.2%
Not known
23 27%

Problems reported at the same time

Age of the animals

Under 1 year
8
1–3 years
20
4–7 years
28
8–11 years
20
12+ years
8

About this medicine

Type: medicine.

Questions owners ask

Can Hydroxyzine cause itching in dogs?
85 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 23 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 Hydroxyzine in dogs · Medicines most reported with itching