Vomiting after Hydroxyzine in dogs

The FDA has received 421 reports of vomiting in dogs after Hydroxyzine. That is 41% of all reports for this medicine, compared with 28% across reports for all dog medicines.

421Reports
22%Marked serious
76%Recovered
2.6%Died or euthanised
82 daysTypical onset
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How soon it started

Same day
42 16%
1–2 days
12 4.5%
3–7 days
18 6.7%
1–4 weeks
24 8.9%
Over a month
173 64%

How the animals did

Recovered
309 73%
Recovered with lasting effects
12 2.9%
Still unwell when reported
61 14%
Died
4 1.0%
Euthanised
7 1.7%
Not known
28 6.7%

Problems reported at the same time

Age of the animals

Under 1 year
33
1–3 years
112
4–7 years
153
8–11 years
79
12+ years
39

About this medicine

Type: medicine.

Questions owners ask

Can Hydroxyzine cause vomiting in dogs?
421 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 82 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).

Vomiting with similar medicines

All reported side effects of Hydroxyzine in dogs · Medicines most reported with vomiting