Important: Adverse event reports are voluntarily submitted and do not prove causation. Consult your veterinarian for medical decisions about your horse.
2,403
Total Reports
273
Deaths Reported
1140.0%
Death Rate
12.7 yr
Avg Age at Report
Average weight at time of report: 437.2 kg (964.0 lbs)
Top Reported Reactions
Lack of efficacy - NOS 265
Injection site swelling 235
Colic 178
INEFFECTIVE, GASTRIC ULCER(S) 137
Death 136
Anorexia 122
Death by euthanasia 111
Fever 107
Injection site pain 104
Ataxia 103
Diarrhoea 103
Behavioural disorder NOS 100
Lethargy (see also Central nervous system depression in 'Neurological') 99
Depression 85
Application site swelling 79
Most Referenced Drugs
Omeprazole 285
Ceftiofur Crystalline Free Acid 276
Pergolide Mesylate 182
Detomidine Hydrochloride 151
Clodronate Disodium 139
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 135
Firocoxib 93
Ivermectin + Praziquantel 89
Polysulfated Glycosaminoglycan 76
Ketamine Hydrochloride 61
Sucralfate 59
Ceftiofur 56
Ivermectin 53
Flunixin Meglumine 52
Hyaluronate Sodium 51
Outcome Breakdown
Recovered/Normal
861 (39.5%)
Outcome Unknown
640 (29.3%)
Ongoing
386 (17.7%)
Died
174 (8.0%)
Euthanized
102 (4.7%)
Recovered with Sequela
19 (0.9%)
Gender Distribution
Male 1,340 (55.8%)
Female 893 (37.2%)
Mixed 96 (4.0%)
Unknown 74 (3.1%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 124 | |
| 2011 | 118 | |
| 2012 | 145 | |
| 2013 | 149 | |
| 2014 | 118 | |
| 2015 | 165 | |
| 2016 | 155 | |
| 2017 | 163 | |
| 2018 | 141 | |
| 2019 | 136 | |
| 2020 | 161 | |
| 2021 | 159 | |
| 2022 | 171 | |
| 2023 | 152 | |
| 2024 | 202 | |
| 2025 | 144 | |
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Rank #74 by report volume. Data reflects voluntary submissions and may not represent actual incidence rates.