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Breed profile · FDA CVM July 2026 extract

Morgan adverse-event record

Adverse-event filings for Morgan (Horse) in the FDA Center for Veterinary Medicine openFDA extract. Browse horse breeds, reactions, and outcomes below.

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#212 of 510
by report volume (all breeds)
145
FDA CVM reports on file
10.3%
death-coded share of reports
#46 of 275
by death-coded share (≥50 reports)

How the 145 reports break down

By recorded gender -- every report on file for Morgan, no filtering.

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 16 12 8 4 0 2018 2019 2020 2021 2022 2023 2024 2025 Reports filed Death-coded reports
Annual report volume for Morgan drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Morgan ranks #212 of 510 by total reports (145) and #46 of 275 by death-coded share (10.3%). National dual: Retriever - Labrador is #1 of 510 by total adverse-event reports (93,675) at death-coded-share rank 195 of 275 breeds with at least 50 reports (3.7%); separately, Atlantic Salmon (Salmo salar) is #1 highest death-coded share at 99.0% (report rank #233).

93,675
Retriever - Labrador reports (#1)
99.0%
Atlantic Salmon (Salmo salar) death share (#1)
#212
This breed, reports of 510
#46
This breed, death share of 275

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Morgan has 145 reports now versus 145 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
Death-coded share
+0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Morgan changes

Total Reports

145

Above-median volume

Deaths Reported

15

of 145 reports

Death-coded share of reports

10.3%

High death-coded share

Avg Age at Report

16.6 yr

426.1 kg avg weight

Death-Coded Outcome Share

Morgan death-coded reports 10.3%
Cross-breed median

10.3% of 145 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 (4.8%) among breeds with 50 or more reports; values above it suggest higher reporting bias toward severe outcomes, not necessarily higher true mortality.

Where Morgan's death-coded share sits among indexed breeds

Death-coded share of FDA CVM reports, breeds with ≥50 reports (July 2026 extract)

10% 83rd percentile Higher share than 83% of 275 indexed breeds

5%–10%: 1 indexed breeds (0%). Below this entry. 20%–25%: 2 indexed breeds (1%). Below this entry. 25%–30%: 3 indexed breeds (1%). Below this entry. 30%–35%: 4 indexed breeds (1%). Below this entry. 35%–40%: 5 indexed breeds (2%). Below this entry. 40%–45%: 6 indexed breeds (2%). Below this entry. 45%–50%: 3 indexed breeds (1%). Below this entry. 50%–55%: 7 indexed breeds (3%). Below this entry. 55%–60%: 7 indexed breeds (3%). Below this entry. 60%–65%: 21 indexed breeds (8%). Below this entry. 65%–70%: 11 indexed breeds (4%). Below this entry. 70%–75%: 15 indexed breeds (5%). Below this entry. 75%–80%: 13 indexed breeds (5%). Below this entry. 80%–85%: 11 indexed breeds (4%). Below this entry. 85%–90%: 12 indexed breeds (4%). Below this entry. 90%–95%: 12 indexed breeds (4%). Below this entry. 95%–100%: 142 indexed breeds (52%). This entry sits in this band. Morgan 5% 100% every breed with ≥50 FDA reports, bucketed by value

Each bar is a band; taller bars hold more indexed breeds. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FDA Center for Veterinary Medicine, openFDA adverse event extract (PlainBreed) · July 2026 extract

This histogram uses the same ≥50-report cohort as the highest death-coded share ranking. A higher share means more of this breed's reported events were death-coded, not a mortality rate for living animals.

Average weight at time of report: 426.1 kg (939.6 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
49 (38.3%)
Recovered/Normal
41 (32.0%)
Ongoing
22 (17.2%)
Euthanized
11 (8.6%)
Died
4 (3.1%)
Recovered with Sequela
1 (0.8%)

Gender Distribution

Male 82 (56.6%)
Female 56 (38.6%)
Unknown 5 (3.4%)
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 8

Morgan: high death-coded share in the FDA CVM extract

Signature read: Morgan's 10.3% death-coded share is in the upper third of the ≥50-report cohort (median 4.8%). According to FDA CVM filings indexed on PlainBreed as of July 2026 extract, Morgan sits at #212 of 510 by report volume among all breeds and #14 of 55 among horse breeds, with 145 reports and 15 (10.3%) death-coded. On death-coded share among breeds with ≥50 reports, it ranks #46 of 275. Mean age at report: 16.6 years, average weight 426.1 kg (939.6 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 128 status-recorded reports is dominated by Outcome Unknown (38.3%). Annual submissions ranged 5-2,025 across 16 years on file.

Horse Breeds With a Similar Report Volume

Showing 6 of 54 horse breeds in our dataset, ranked by closest report volume.

Standardbred (unspecified)
141 reports · 14.9% death-coded
Pony (unspecified)
151 reports · 11.9% death-coded
Hanovarian
137 reports · 2.2% death-coded
Miniature
164 reports · 15.9% death-coded
Appaloosa
167 reports · 10.2% death-coded
Warmblood - Dutch
184 reports · 2.7% death-coded

Nationwide breeds with similar profiles

Two openFDA-derived peer sets for Morgan, both outside the Horse family so the neighborhoods are not species containment (the similar-volume list above stays within species).

Similar death-coded share

Nearest other-species breeds with ≥50 reports (10.3% death-coded here).

Himalayan 10.6% · Cat Mixed (Cat) 10.7% · Cat Domestic ferret (Pet ferret) 9.9% · Ferret Mastiff (unspecified) 9.8% · Dog

What to do with this horse

A report does not prove a drug caused the reaction, and popular breeds simply generate more reports.

Frequently Asked Questions

How many FDA adverse event reports involve Morgan? ▼
There are 145 adverse event reports involving Morgan in the FDA database, of which 15 were death-coded (10.3% of those reports). That is a share of REPORTED events, not a mortality rate for the breed: adverse events reach the FDA when something goes wrong, so the denominator is reports, never the population of animals. According to the same FDA CVM extract, Morgan ranks #212 of 510 by report volume among all breeds PlainBreed indexes (#14 of 55 among horse breeds).
Where does Morgan sit among other breeds in PlainBreed's corpus? ▼
According to FDA CVM report volume, Morgan is #212 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Horse, it is #14 of 55. Among breeds with at least 50 reports, its death-coded share ranks #46 of 275 (same cohort as highest-death-rate). These are placement ranks in the reporting corpus, not clinical risk scores.
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 426.1 kg (939.6 lbs).

Compare a breed's report volume against how common the breed is before drawing conclusions. See our methodology for how the death-coded share and rankings are computed, or read breed-specific reporting patterns and FDA CVM reporting.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Morgan (Horse), extract as of July 2026 extract. 145 reports · 15 death-coded (10.3% of reports, not a mortality rate) · #212 of 510 by volume.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →