Fenthion — 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. Fenthion is a active ingredient.
Total reports
Fenthion: 234
Reports by species (top entries)
- Dog 95
- Cattle 75
- Cat 10
- Human 7
- Eagle 1
- Other 1
Top reported reactions (VEDDRA terms, top entries)
- Death 41
- Vomiting 25
- Hypersalivation 24
- INEFFECTIVE, GRUBS 24
- Depression 22
- Trembling 22
- Lack of efficacy (ectoparasite) - lice 20
- Anorexia 18
- Diarrhoea 17
- Vials, Leaking 17
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b17.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).