FDA ADE — Top Reported Active Ingredients in Horses
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 and not additive. This topic ranks the active ingredients most frequently named in adverse-event reports where the affected animal species is Horse. Active-ingredient names are verbatim from openFDA's drug.active_ingredients.name field (combo products appear as combined terms, e.g. "Pyrantel Pamoate;Sarolaner").
Total Horse adverse-event reports
Horse: 18382
Top reported active ingredients (Horse)
- Omeprazole 1595
- Ivermectin, Praziquantel 1565
- Moxidectin 1369
- Ivermectin 1185
- Pergolide Mesylate 1165
- Ceftiofur Crystalline Free Acid 882
- Pyrantel Tartrate 739
- Ivermectin(1.55%)/Praziquantel(7.75%) Paste 632
- Detomidine Hydrochloride 570
- Ketamine Hydrochloride 561
- Hyaluronate Sodium 497
- Flunixin Meglumine 492
- Detomidine 454
- Polysulfated Glycosaminoglycan 415
- Firocoxib 402
"Lack of efficacy" terms denote product-performance reports, not adverse reactions.
Source JSON: pdf-raw/ade/ade_species_active_2026-07-22.json (openFDA animalandveterinary/event.json, pulled 2026-07-22).