Azithromycin — 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. Azithromycin is a active ingredient.
Total reports
Azithromycin: 146
Reports by species (top entries)
- Cat 80
- Dog 61
- Human 3
- Horse 1
Top reported reactions (VEDDRA terms, top entries)
- Vomiting 25
- Lethargy (see also Central nervous system depression in 'Neurological') 24
- Not eating 18
- Death 15
- Death by euthanasia 15
- Diarrhoea 14
- Decreased appetite 13
- Lack of efficacy - NOS 12
- Other abnormal test result NOS 12
- Weight loss 12
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b19.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).