Amprolium — 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. Amprolium is a active ingredient.
Total reports
Amprolium: 303
Reports by species (top entries)
- Cattle 90
- Human 30
- Goat 9
- Dog 8
- Chicken 7
- Sheep 6
Top reported reactions (VEDDRA terms, top entries)
- Appearance, Abnormal 73
- Death 49
- Lack of efficacy (protozoa) - Coccidia 43
- Contamination, Particulate Matter 34
- Accidental exposure 30
- Potency, Low 19
- Diarrhoea 17
- Unclassifiable adverse event 17
- Bloody diarrhoea 15
- Product defect NOS 10
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b16.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).