Death after Hydroxyzine in dogs

41 reports to the FDA describe death in dogs given Hydroxyzine. That is 4.0% of all reports for this medicine, compared with 5.2% across reports for all dog medicines.

41Reports
100%Marked serious
0.0%Recovered
100%Died or euthanised
30 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
4 11%
1–2 days
2 5.7%
3–7 days
7 20%
1–4 weeks
5 14%
Over a month
17 49%

How the animals did

Died
18 44%
Euthanised
23 56%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
5
4–7 years
7
8–11 years
18
12+ years
10

About this medicine

Type: medicine.

Questions owners ask

Can Hydroxyzine cause death in dogs?
41 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 30 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).

Death with similar medicines

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