Boldenone — 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. Boldenone is a active ingredient.
Total reports
Boldenone: 16
Reports by species (top entries)
- Horse 10
- Cattle 1
Top reported reactions (VEDDRA terms, top entries)
- Aggression 4
- Behavioural disorder NOS 2
- Containers, Damaged 2
- Injection site swelling 2
- Vials, Damaged 2
- Anorexia 1
- Containers, Abnormal 1
- Dehydration 1
- Depression 1
- Elevated liver enzymes 1
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b29.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).