Tylosin — 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. Tylosin is a veterinary active ingredient.
Total reports
Tylosin: 2204
Reports by species (top entries)
- Dog 629
- Cattle 590
- Pig 246
- Human 234
- Chicken 89
- Cat 57
Top reported reactions (VEDDRA terms, top entries)
- Death 422
- Unclassifiable adverse event 199
- Lack of efficacy (bacteria) - NOS 194
- Accidental exposure 179
- Diarrhoea 155
- Lack of efficacy - NOS 151
- Lameness 95
- Vomiting 94
- Anorexia 91
- UNPALATABLE 77
"Lack of efficacy" terms denote product-performance reports, not adverse reactions.
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b6.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).