Telmisartan — 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. Telmisartan is a veterinary active ingredient.
Total reports
Telmisartan: 694
Reports by species (top entries)
- Cat 420
- Dog 198
- Human 2
Top reported reactions (VEDDRA terms, top entries)
- Vomiting 133
- Lack of efficacy - NOS 118
- Weight loss 60
- Diarrhoea 58
- Elevated creatinine 50
- Decreased appetite 49
- Death by euthanasia 42
- Lethargy (see also Central nervous system depression in Neurological) 37
- Elevated blood urea nitrogen (BUN) 34
- Lethargy (see also Central nervous system depression in 'Neurological') 33
"Lack of efficacy" terms denote product-performance reports, not adverse reactions.
Source JSON: pdf-raw/ade/ade_active_ingredients_2026-07-22_b6.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).