Total Reports
143
FDA CVM filings
Horse /
FDA CVM · 2025 release 143 reports on file
Morgan - FDA Adverse Event Profile
Adverse-event records for Morgan (Horse) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Among horse breeds, Morgan is #210 by FDA report volume; 10.5% of its 143 reports (15) were death-coded.
- #210
- most-reported horse breed
- 10.5%
- death-coded report share
- 15
- Lack of efficacy - NOS - top reaction
- 16.6 yr
- average age at report
Report counts track breed popularity and reporting activity, not real-world risk, read this alongside how common the breed is.
Deaths Reported
15
of 143 reports
Death Rate
10.5%
death-coded share
Avg Age at Report
16.6 yr
425.7 kg avg weight
Death-Coded Outcome Share
Morgan death-coded reports 10.5%
Cross-breed median
10.5% of 143 morgan reports involved a death outcome.
How to read this number
Read alongside breed popularity, veterinary access, and owner awareness, these shape how many events ever reach the FDA. The comparison line marks the cross-breed median death-coded share (about 4.8%) among breeds with 50 or more reports; values above it suggest higher reporting bias toward severe outcomes, not necessarily higher true mortality.
Average weight at time of report: 425.7 kg (938.7 lbs)
Top Reported Reactions
Lack of efficacy - NOS 15
Anorexia 14
Colic 14
Death by euthanasia 12
INEFFECTIVE, GASTRIC ULCER(S) 10
Other abnormal test result NOS 8
Fever 8
Injection site swelling 8
Most Referenced Drugs
Pergolide Mesylate 36
Omeprazole 14
Detomidine Hydrochloride 10
Ceftiofur Crystalline Free Acid 10
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 8
Moxidectin 7
Firocoxib 7
Ivermectin, Praziquantel 5
Outcome Breakdown
Outcome Unknown
47 (37.3%)
Recovered/Normal
41 (32.5%)
Ongoing
22 (17.5%)
Euthanized
11 (8.7%)
Died
4 (3.2%)
Recovered with Sequela
1 (0.8%)
Gender Distribution
Male 80 (55.9%)
Female 56 (39.2%)
Unknown 5 (3.5%)
Mixed 2 (1.4%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 5 | |
| 2011 | 6 | |
| 2012 | 8 | |
| 2013 | 17 | |
| 2014 | 6 | |
| 2015 | 15 | |
| 2016 | 5 | |
| 2017 | 5 | |
| 2018 | 7 | |
| 2019 | 9 | |
| 2020 | 11 | |
| 2021 | 11 | |
| 2022 | 16 | |
| 2023 | 10 | |
| 2024 | 6 | |
| 2025 | 6 | |
Morgan Pet Health Insights
Morgan accounts for 143 FDA adverse event reports, ranking #210 by volume among horse breeds, with 15 reports (10.5%) coded as a death outcome. Mean age at report: 16.6 years, average weight 425.7 kg (938.7 lbs).
Top reported signs: Lack of efficacy - NOS (15), Anorexia (14), Colic (14). Most-referenced drug: Pergolide Mesylate (36 reports), followed by Omeprazole (14) and Detomidine Hydrochloride (10).
Outcome coding on 126 status-recorded reports is dominated by Outcome Unknown (37.3%). Annual submissions ranged 2,010-2,025 across 16 years on file.
Horse Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Morgan? ▼
There are 143 adverse event reports involving Morgan in the FDA database, with 15 reports involving death (10.5% death rate). Morgan ranks #210 by report volume.
What are the most common adverse reactions reported for Morgan? ▼
The most commonly reported adverse reactions for Morgan are Lack of efficacy - NOS (15 reports), Anorexia (14 reports), Colic (14 reports), Death by euthanasia (12 reports), INEFFECTIVE, GASTRIC ULCER(S) (10 reports).
What drugs are most frequently associated with Morgan adverse events? ▼
The drugs most frequently referenced in Morgan adverse event reports are Pergolide Mesylate (36 reports), Omeprazole (14 reports), Detomidine Hydrochloride (10 reports), Ceftiofur Crystalline Free Acid (10 reports), Ivermectin(1.55%)/Praziquantel(7.75%) Paste (8 reports).
What is the average age of Morgan in adverse event reports? ▼
The average age of Morgan at the time of adverse event reports is 16.6 years, with an average weight of 425.7 kg (938.7 lbs).
Does a high number of adverse event reports mean Morgan is unhealthy? ▼
No. FDA adverse event reports are voluntarily submitted and do not prove causation. Popular breeds with more veterinary visits tend to have more reports. The data reflects reporting patterns, not actual incidence rates. Always consult a veterinarian for health decisions.
Where does this Morgan safety data come from? ▼
All data comes from the FDA Center for Veterinary Medicine's adverse event reporting system. Pet owners, veterinarians, and manufacturers voluntarily submit reports about adverse events potentially linked to animal drugs and other products.
Compare a breed's report volume against how common the breed is before drawing conclusions. See our methodology for how death rate and rankings are computed.
Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. Breed figures are computed directly from FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.