Horse /

Rocky Mountain Horse

31 adverse event reports submitted to the FDA

Important: Adverse event reports are voluntarily submitted and do not prove causation. Consult your veterinarian for medical decisions about your horse.
31
Total Reports
3
Deaths Reported
970.0%
Death Rate
14.8 yr
Avg Age at Report
Average weight at time of report: 432.3 kg (953.2 lbs)

Top Reported Reactions

Fever 3
Behavioural disorder NOS 3
Injection site inflammation 3
Death by euthanasia 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Injection site swelling 2
Recumbency 2
Muscle stiffness 2
Skin swelling 1
Decreased appetite 1
Localised pain NOS (see other 'SOCs' for specific pain) 1
Skin inflammation NOS 1
Sudden death 1
Collapse NOS (see also 'Cardio-vascular' and 'Neurological disorders') 1
Colic 1

Most Referenced Drugs

Pergolide Mesylate 10
Ceftiofur Crystalline Free Acid 6
Ivermectin + Praziquantel 2
Detomidine Hydrochloride 2
Dexamethasone 2
Omeprazole 2
Gentamicin 1
Flunixin 1
Firocoxib 57 Mg Chewable 1
Pyrantel Tartrate 1
Bacitracin + Neomycin + Polymyxin 1
Chlorpromazine 1
Pyrimethamine + Sulfadiazine 1
Oxybendazole 1
Butorphanol Tartrate Injection 1

Outcome Breakdown

Outcome Unknown
11 (34.4%)
Recovered/Normal
10 (31.3%)
Ongoing
8 (25.0%)
Euthanized
2 (6.3%)
Died
1 (3.1%)

Gender Distribution

Male 18 (58.1%)
Female 10 (32.3%)
Unknown 2 (6.5%)
Mixed 1 (3.2%)

Reports by Year

Year Reports Trend
2013 2
2014 4
2015 2
2016 2
2017 1
2018 4
2019 3
2020 1
2021 1
2022 4
2023 3
2024 2
2025 2

Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Rank #314 by report volume. Data reflects voluntary submissions and may not represent actual incidence rates.