Selenium — 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. Selenium is a active ingredient.
Total reports
Selenium: 4
Reports by species (top entries)
- Cattle 2
- Horse 2
Top reported reactions (VEDDRA terms, top entries)
- Death 2
- PR-LIVER, LESION(S) 2
- Aggression 1
- Ataxia 1
- Colic 1
- Collapse NOS (see also Cardio-vascular and Neurological disorders) 1
- Cyanosis 1
- Death by euthanasia 1
- Decreased bowel movements 1
- Dehydration 1
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b32.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).