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Breed profile · FDA CVM July 2026 extract

Missouri Fox Trotting Horse adverse-event record

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

#371 of 510
by report volume (all breeds)
19
FDA CVM reports on file
5.3%
death-coded share of reports
5
Diarrhoea - top reaction

How the 19 reports break down

By recorded gender -- every report on file for Missouri Fox Trotting Horse, no filtering.

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 4 3 2 1 0 2016 2017 2018 2020 2021 2022 2024 2025 Reports filed Death-coded reports
Annual report volume for Missouri Fox Trotting Horse drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Missouri Fox Trotting Horse ranks #364 of 510 by total reports (19). Death-coded-share rank requires at least 50 reports. 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)
#364
This breed, reports of 510

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. Missouri Fox Trotting Horse has 19 reports now versus 19 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 Missouri Fox Trotting Horse changes

Total Reports

19

Below-median volume

Deaths Reported

1

of 19 reports

Death-coded share of reports

5.3%

5.3% death-coded

Avg Age at Report

20.1 yr

452.4 kg avg weight

Death-Coded Outcome Share

Missouri Fox Trotting Horse death-coded reports 5.3%
Cross-breed median

5.3% of 19 missouri fox trotting horse 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.

Average weight at time of report: 452.4 kg (997.5 lbs)

Top Reported Reactions

Diarrhoea 5
Lethargy (see also Central nervous system depression in 'Neurological') 5
Uncoded sign 2
Decreased appetite 2
Lack of efficacy - NOS 2

Most Referenced Drugs

Pergolide Mesylate 8
Moxidectin 2
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 1
Ceftiofur Crystalline Free Acid 1
Dexamethasone 1

Outcome Breakdown

Outcome Unknown
9 (47.4%)
Recovered/Normal
7 (36.8%)
Ongoing
2 (10.5%)
Died
1 (5.3%)

Gender Distribution

Male 9 (47.4%)
Female 9 (47.4%)
Mixed 1 (5.3%)

Reports by Year

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

Missouri Fox Trotting Horse: sparse FDA adverse-event cohort

Signature read: 19 reports place Missouri Fox Trotting Horse in the lower third of breed filing volume (#371 of 510). According to FDA CVM filings indexed on PlainBreed as of July 2026 extract, Missouri Fox Trotting Horse sits at #371 of 510 by report volume among all breeds and #40 of 55 among horse breeds, with 19 reports and 1 (5.3%) death-coded. Mean age at report: 20.1 years, average weight 452.4 kg (997.5 lbs).

Top reported signs: Diarrhoea (5), Lethargy (see also Central nervous system depression in 'Neurological') (5), Uncoded sign (2). Most-referenced drug: Pergolide Mesylate (8 reports), followed by Moxidectin (2) and Ivermectin(1.55%)/Praziquantel(7.75%) Paste (1).

Outcome coding on 19 status-recorded reports is dominated by Outcome Unknown (47.4%). Annual submissions ranged 1-2,025 across 11 years on file.

Horse Breeds With a Similar Report Volume

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

Nationwide breeds with similar profiles

Sparse-volume peer sets for Missouri Fox Trotting Horse drawn from openFDA outside the Horse family so the neighborhoods are not species containment (the similar-volume list above stays within species).

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 Missouri Fox Trotting Horse?
There are 19 adverse event reports involving Missouri Fox Trotting Horse in the FDA database, of which 1 were death-coded (5.3% 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, Missouri Fox Trotting Horse ranks #371 of 510 by report volume among all breeds PlainBreed indexes (#40 of 55 among horse breeds).
Where does Missouri Fox Trotting Horse sit among other breeds in PlainBreed's corpus?
According to FDA CVM report volume, Missouri Fox Trotting Horse is #371 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Horse, it is #40 of 55. It has fewer than 50 reports, so it is outside the death-rate ranking cohort (≥50 reports). These are placement ranks in the reporting corpus, not clinical risk scores.
What are the most common adverse reactions reported for Missouri Fox Trotting Horse?
The most commonly reported adverse reactions for Missouri Fox Trotting Horse are Diarrhoea (5 reports), Lethargy (see also Central nervous system depression in 'Neurological') (5 reports), Uncoded sign (2 reports), Decreased appetite (2 reports), Lack of efficacy - NOS (2 reports).
What drugs are most frequently associated with Missouri Fox Trotting Horse adverse events?
The drugs most frequently referenced in Missouri Fox Trotting Horse adverse event reports are Pergolide Mesylate (8 reports), Moxidectin (2 reports), Ivermectin(1.55%)/Praziquantel(7.75%) Paste (1 reports), Ceftiofur Crystalline Free Acid (1 reports), Dexamethasone (1 reports).
What is the average age of Missouri Fox Trotting Horse in adverse event reports?
The average age of Missouri Fox Trotting Horse at the time of adverse event reports is 20.1 years, with an average weight of 452.4 kg (997.5 lbs).

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

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Missouri Fox Trotting Horse (Horse), extract as of July 2026 extract. 19 reports · 1 death-coded (5.3% of reports, not a mortality rate) · #371 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 →