Cetirizine — FDA Animal & Veterinary Adverse Event (ADE) Reports
Source: openFDA animalandveterinary/event.json, the FDA Center for Veterinary Medicine (CVM) adverse event report database. Data pulled 2026-07-22. Counts are report-level: one report may list multiple reactions and multiple animals, so figures are not additive and do not imply causation. Cetirizine is a active ingredient.
Total reports
Cetirizine: 430
Reports by species (top entries)
- Dog 377
- Cat 33
- Human 20
Top reported reactions (VEDDRA terms, top entries)
- Emesis 77
- Vomiting 64
- Diarrhoea 59
- Lack of efficacy - NOS 49
- Lethargy (see also Central nervous system depression in 'Neurological') 48
- Other abnormal test result NOS 24
- Anorexia 23
- Lethargy (see also Central nervous system depression in Neurological) 23
- Behavioural disorder NOS 20
- Decreased appetite 19
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b15.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).