Oxfendazole — 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. Oxfendazole is a active ingredient.
Total reports
Oxfendazole: 296
Reports by species (top entries)
- Cattle 215
- Dog 19
- Sheep 6
- Goat 4
- Horse 4
- Human 4
Top reported reactions (VEDDRA terms, top entries)
- Death 149
- Lack of efficacy - NOS 64
- Death by euthanasia 19
- Lack of efficacy (bacteria) - NOS 19
- CULTURE/TITER DATA ABNORMAL 12
- Lack of efficacy (bacteria NOS) 11
- NT - Abnormal necropsy finding NOS 11
- Respiratory signs 11
- Caps, Abnormal 10
- INEFFECTIVE, STRONGYLES 10
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b16.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).