Niacin — 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. Niacin is a active ingredient.
Total reports
Niacin: 15
Reports by species (top entries)
- Dog 7
- Human 3
- Cat 2
Top reported reactions (VEDDRA terms, top entries)
- Diarrhoea 3
- Accidental exposure 2
- Elevated alanine aminotransferase (ALT) 2
- Faecal incontinence 2
- Lethargy (see also Central nervous system depression in 'Neurological') 2
- Seizure NOS 2
- Vocalisation 2
- Vomiting 2
- Abdominal pain 1
- Abnormal movement NOS 1
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b34.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).