Avermectin — 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. Avermectin is a active ingredient.
Total reports
Avermectin: 2
Reports by species (top entries)
- Cattle 2
Top reported reactions (VEDDRA terms, top entries)
- Lack of efficacy (bacteria) - NOS 2
- Death 1
- Drug dose administration interval too short 1
- Overdose 1
- PR-LUNG(S), LESION(S) 1
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b34.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).