Zilpaterol — 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. Zilpaterol is a active ingredient.
Total reports
Zilpaterol: 78
Reports by species (top entries)
- Cattle 62
- Horse 6
- Human 2
- Pig 1
- Sheep 1
Top reported reactions (VEDDRA terms, top entries)
- Death 34
- Pneumonia 10
- Accidental exposure 8
- Claw / hoof / nail disorder NOS 8
- Death by euthanasia 7
- Anorexia 6
- DEATH-SLAUGHTERED 6
- INEFFECTIVE, PRODUCTION (MEAT) 6
- Ruminal bloat 6
- Hyperhidrosis 5
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b22.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).