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Breed profile · FDA CVM July 2026 extract

Tennessee Walking Horse adverse-event record

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

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#189 of 510
by report volume (all breeds)
186
FDA CVM reports on file
12.9%
death-coded share of reports
#35 of 275
by death-coded share (≥50 reports)

How the 186 reports break down

By recorded gender -- every report on file for Tennessee Walking Horse, no filtering.

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 17 12.75 8.5 4.25 0 2019 2020 2021 2022 2023 2024 2025 2026 Reports filed Death-coded reports
Annual report volume for Tennessee Walking Horse drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Tennessee Walking Horse ranks #189 of 510 by total reports (186) and #35 of 275 by death-coded share (12.9%). 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)
#189
This breed, reports of 510
#35
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. Tennessee Walking Horse has 186 reports now versus 181 in that prior snapshot: 5 more (2.8%).

Report change
+5
Death-coded reports
+2
Death-coded share
+0.7 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 Tennessee Walking Horse changes

Total Reports

186

Above-median volume

Deaths Reported

24

of 186 reports

Death-coded share of reports

12.9%

High death-coded share

Avg Age at Report

14.8 yr

434.8 kg avg weight

Death-Coded Outcome Share

Tennessee Walking Horse death-coded reports 12.9%
Cross-breed median

12.9% of 186 tennessee walking 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.

Where Tennessee Walking Horse's death-coded share sits among indexed breeds

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

13% 87th percentile Higher share than 87% 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. Tennessee Walking Horse 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: 434.8 kg (958.7 lbs)

Top Reported Reactions

Lack of efficacy - NOS 22
Colic 20
Death by euthanasia 16
Anorexia 15
Lethargy (see also Central nervous system depression in 'Neurological') 12
Diarrhoea 11
Other abnormal test result NOS 11
Ataxia 9

Most Referenced Drugs

Pergolide Mesylate 30
Omeprazole 21
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 17
Ceftiofur Crystalline Free Acid 17
Ivermectin + Praziquantel 13
Ponazuril 8
Moxidectin 7
Detomidine 5

Outcome Breakdown

Recovered/Normal
62 (35.0%)
Outcome Unknown
59 (33.3%)
Ongoing
29 (16.4%)
Euthanized
13 (7.3%)
Died
12 (6.8%)
Recovered with Sequela
2 (1.1%)

Gender Distribution

Male 117 (62.9%)
Female 54 (29.0%)
Unknown 9 (4.8%)
Mixed 6 (3.2%)

Reports by Year

Year Reports Trend
2010 8
2011 7
2012 16
2013 12
2014 21
2015 12
2016 6
2017 6
2018 9
2019 10
2020 13
2021 17
2022 9
2023 13
2024 14
2025 10
2026 3

Tennessee Walking Horse: high death-coded share in the FDA CVM extract

Signature read: Tennessee Walking Horse's 12.9% 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, Tennessee Walking Horse sits at #189 of 510 by report volume among all breeds and #9 of 55 among horse breeds, with 186 reports and 24 (12.9%) death-coded. On death-coded share among breeds with ≥50 reports, it ranks #35 of 275. Mean age at report: 14.8 years, average weight 434.8 kg (958.7 lbs).

Top reported signs: Lack of efficacy - NOS (22), Colic (20), Death by euthanasia (16). Most-referenced drug: Pergolide Mesylate (30 reports), followed by Omeprazole (21) and Ivermectin(1.55%)/Praziquantel(7.75%) Paste (17).

Outcome coding on 177 status-recorded reports is dominated by Recovered/Normal (35.0%). Annual submissions ranged 3-2,026 across 17 years on file.

Horse Breeds With a Similar Report Volume

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

Warmblood - Dutch
184 reports · 2.7% death-coded
Crossbred Equine/horse
190 reports · 7.9% death-coded
Appaloosa
167 reports · 10.2% death-coded
Miniature
164 reports · 15.9% death-coded
Pony (unspecified)
151 reports · 11.9% death-coded
Morgan
145 reports · 10.3% death-coded

Nationwide breeds with similar profiles

Two openFDA-derived peer sets for Tennessee Walking Horse, 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 (12.9% death-coded here).

European 13.0% · Cat Domestic (unspecified) 13.4% · Cat Sphynx 13.6% · Cat Rex - Devon 13.6% · Cat

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 Tennessee Walking Horse? ▼
There are 186 adverse event reports involving Tennessee Walking Horse in the FDA database, of which 24 were death-coded (12.9% 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, Tennessee Walking Horse ranks #189 of 510 by report volume among all breeds PlainBreed indexes (#9 of 55 among horse breeds).
Where does Tennessee Walking Horse sit among other breeds in PlainBreed's corpus? ▼
According to FDA CVM report volume, Tennessee Walking Horse is #189 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Horse, it is #9 of 55. Among breeds with at least 50 reports, its death-coded share ranks #35 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 Tennessee Walking Horse? ▼
The most commonly reported adverse reactions for Tennessee Walking Horse are Lack of efficacy - NOS (22 reports), Colic (20 reports), Death by euthanasia (16 reports), Anorexia (15 reports), Lethargy (see also Central nervous system depression in 'Neurological') (12 reports).
What drugs are most frequently associated with Tennessee Walking Horse adverse events? ▼
The drugs most frequently referenced in Tennessee Walking Horse adverse event reports are Pergolide Mesylate (30 reports), Omeprazole (21 reports), Ivermectin(1.55%)/Praziquantel(7.75%) Paste (17 reports), Ceftiofur Crystalline Free Acid (17 reports), Ivermectin + Praziquantel (13 reports).
What is the average age of Tennessee Walking Horse in adverse event reports? ▼
The average age of Tennessee Walking Horse at the time of adverse event reports is 14.8 years, with an average weight of 434.8 kg (958.7 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 Tennessee Walking Horse (Horse), extract as of July 2026 extract. 186 reports · 24 death-coded (12.9% of reports, not a mortality rate) · #189 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 →