Ampicillin — 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. Ampicillin is a active ingredient.
Total reports
Ampicillin: 644
Reports by species (top entries)
- Dog 179
- Cattle 163
- Cat 73
- Horse 7
- Other 4
- Human 2
Top reported reactions (VEDDRA terms, top entries)
- Death 91
- Solution, Abnormal 65
- Suspension, Abnormal 56
- Death by euthanasia 35
- Anaphylaxis 32
- Anorexia 30
- Injection site swelling 30
- Vomiting 27
- Residues in milk 25
- Dyspnoea 24
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b12.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).