Morphine — 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. Morphine is a active ingredient.
Total reports
Morphine: 378
Reports by species (top entries)
- Dog 300
- Cat 59
- Horse 7
- Human 3
- Goat 2
- Other 2
Top reported reactions (VEDDRA terms, top entries)
- Vomiting 57
- Death 46
- Other abnormal test result NOS 45
- Lethargy (see also Central nervous system depression in 'Neurological') 43
- Anorexia 39
- Death by euthanasia 39
- Lack of efficacy - NOS 34
- Bradycardia 27
- Elevated alanine aminotransferase (ALT) 22
- Diarrhoea 21
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b13.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).