Loratidine — 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. Loratidine is a active ingredient.
Total reports
Loratidine: 156
Reports by species (top entries)
- Dog 143
- Human 7
- Cat 4
- Monkey 1
Top reported reactions (VEDDRA terms, top entries)
- Emesis 26
- Lack of efficacy - NOS 19
- Lethargy (see also Central nervous system depression in 'Neurological') 18
- Vomiting 15
- Diarrhoea 12
- INEFFECTIVE, ATOPY CONTROL 10
- Other abnormal test result NOS 10
- Behavioural disorder NOS 8
- Seizure NOS 7
- Anorexia 6
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b19.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).