Neomycin — 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. Neomycin is a active ingredient.
Total reports
Neomycin: 910
Reports by species (top entries)
- Cat 418
- Dog 219
- Human 61
- Cattle 7
- Ferret 3
- Goat 1
Top reported reactions (VEDDRA terms, top entries)
- Vomiting 76
- Lethargy (see also Central nervous system depression in 'Neurological') 72
- Lethargy (see also Central nervous system depression in Neurological) 67
- Vials, Damaged 60
- Not eating 54
- Elevated alanine aminotransferase (ALT) 52
- Lack of efficacy - NOS 51
- Anorexia 39
- Closure, Abnormal 39
- Ataxia 38
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b11.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).