Nystatin — 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. Nystatin is a active ingredient.
Total reports
Nystatin: 371
Reports by species (top entries)
- Dog 298
- Cat 50
- Human 6
- Other 2
- Horse 1
Top reported reactions (VEDDRA terms, top entries)
- Deafness 112
- Loss of hearing 61
- Vomiting 28
- Lack of efficacy - NOS 26
- Accidental exposure 23
- Lethargy (see also Central nervous system depression in Neurological) 22
- Diarrhoea 19
- Medication error NOS 16
- Temporary deafness 13
- Incorrect route of drug administration 11
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b16.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).