Important: Adverse event reports are voluntarily submitted and do not prove causation. Consult your veterinarian for medical decisions about your horse.
1,177
Total Reports
97
Deaths Reported
820.0%
Death Rate
11.9 yr
Avg Age at Report
Average weight at time of report: 450.4 kg (993.1 lbs)
Top Reported Reactions
Lack of efficacy - NOS 152
INEFFECTIVE, GASTRIC ULCER(S) 149
Injection site swelling 141
Fever 94
Colic 87
Injection site pain 78
Anorexia 72
Application site swelling 62
Swollen mouth 56
Death by euthanasia 54
Lethargy (see also Central nervous system depression in 'Neurological') 44
Partial lack of efficacy 41
Abnormal ultrasound finding 38
Lip oedema (see also 'Skin') 36
Death 35
Most Referenced Drugs
Omeprazole 232
Ceftiofur Crystalline Free Acid 153
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 86
Ivermectin, Praziquantel 59
Pergolide Mesylate 55
Polysulfated Glycosaminoglycan 54
Detomidine Hydrochloride 54
Sucralfate 43
Omeprazole 37% Oral Paste 42
Ceftiofur 41
Ivermectin + Praziquantel 40
Clodronate Disodium 27
Firocoxib 25
Hyaluronate Sodium 18
Ivermectin 16
Outcome Breakdown
Recovered/Normal
405 (39.3%)
Outcome Unknown
315 (30.6%)
Ongoing
199 (19.3%)
Died
49 (4.8%)
Euthanized
49 (4.8%)
Recovered with Sequela
13 (1.3%)
Gender Distribution
Male 693 (58.9%)
Female 383 (32.5%)
Unknown 53 (4.5%)
Mixed 48 (4.1%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 69 | |
| 2011 | 79 | |
| 2012 | 69 | |
| 2013 | 60 | |
| 2014 | 88 | |
| 2015 | 98 | |
| 2016 | 72 | |
| 2017 | 81 | |
| 2018 | 58 | |
| 2019 | 55 | |
| 2020 | 86 | |
| 2021 | 79 | |
| 2022 | 77 | |
| 2023 | 81 | |
| 2024 | 69 | |
| 2025 | 56 | |
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Rank #103 by report volume. Data reflects voluntary submissions and may not represent actual incidence rates.