Pet Recall Facts

Ingredients / Hydroxyzine

Hydroxyzine: FDA adverse event reports for pets

Reports received through June 26, 2026. Data and limitations.

1,012Total reports
979Dog reports
16Cat reports

FDA-approved products with this ingredient (Green Book)

No matching Green Book entry is supplied in this dataset. This alone does not establish regulatory status.

No Green Book record matches this ingredient name. It may be a human medicine used by veterinarians, a compounded product, a supplement or a product regulated by another agency; this alone does not establish regulatory status.

Brand names come only from the Green Book. Brand names in FDA's public report data are masked, so counts cannot be attributed to any brand. Ingredient names in the reports are written many ways; we group them under one ingredient name and count each report once per ingredient (method).

Reports by year received

20011
20031
20071
201117
2012174
2013177
2014100
201582
2016121
201776
201838
201923
202017
202128
202225
202329
202436
202555
202611

Species named in reports

Dog979
Cat16
Human9
Not given5
Horse3

Signs reported after Hydroxyzine

Emesis213
Vomiting171
Lethargy (see also Central nervous system depression in Neurological)154
Diarrhoea86
Other abnormal test result NOS78
Lack of efficacy - NOS75
Elevated serum alkaline phosphatase (SAP)45
Elevated alanine aminotransferase (ALT)44
Behavioural disorder NOS43
Seizure NOS43
Anorexia40
Decreased appetite39
Pruritus36
INEFFECTIVE, ATOPY CONTROL32
Weight loss31
Polydipsia29
Panting28
Shaking28
Ataxia28
Polyuria27
Not eating27
Death by euthanasia23
Lack of efficacy (ectoparasite) - flea22
Itching21
Leucocytosis NOS21

Breeds named in reports

Retriever - Labrador102
Dog (unknown)79
Crossbred Canine/dog55
Shih Tzu51
Terrier - Yorkshire46
Retriever - Golden39
Boxer (German Boxer)36
Terrier (unspecified)34
Terrier - West Highland White31
Shepherd Dog - German30
Maltese29
Chihuahua29
Bulldog - French28
Terrier - Jack Russell28
Shepherd Dog - Australian26

Reported outcomes

Recovered/Normal426
Ongoing323
Outcome Unknown179
Recovered with Sequela37
Euthanized22
Died18

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