Total Reports
5
FDA CVM filings
Horse /
FDA CVM · 2025 release 5 reports on file
Hackney - FDA Adverse Event Profile
Adverse-event records for Hackney (Horse) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Among horse breeds, Hackney is #487 by FDA report volume; 20.0% of its 5 reports (1) were death-coded.
- #487
- most-reported horse breed
- 20.0%
- death-coded report share
- 2
- Injection site swelling - top reaction
- 15.7 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
1
of 5 reports
Death Rate
20.0%
death-coded share
Avg Age at Report
15.7 yr
271.1 kg avg weight
Death-Coded Outcome Share
Hackney death-coded reports 20.0%
Cross-breed median
20.0% of 5 hackney 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: 271.1 kg (597.8 lbs)
Top Reported Reactions
Injection site swelling 2
Injection site abscess 1
INEFFECTIVE, EUTHANASIA 1
INEFFECTIVE, DELAYED EFFECT 1
Application site swelling 1
Most Referenced Drugs
Ceftiofur 1
Ceftiofur Crystalline Free Acid 1
Pentobarbital Sodium + Phenytoin Sodium 1
Ivermectin + Praziquantel 1
Pergolide Mesylate 1
Outcome Breakdown
Ongoing
1 (25.0%)
Euthanized
1 (25.0%)
Recovered/Normal
1 (25.0%)
Outcome Unknown
1 (25.0%)
Gender Distribution
Female 2 (40.0%)
Male 2 (40.0%)
Mixed 1 (20.0%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2011 | 1 | |
| 2018 | 1 | |
| 2022 | 1 | |
| 2024 | 2 | |
Hackney Pet Health Insights
Hackney accounts for 5 FDA adverse event reports, ranking #487 by volume among horse breeds, with 1 reports (20.0%) coded as a death outcome. Mean age at report: 15.7 years, average weight 271.1 kg (597.8 lbs).
Top reported signs: Injection site swelling (2), Injection site abscess (1), INEFFECTIVE, EUTHANASIA (1). Most-referenced drug: Ceftiofur (1 reports), followed by Ceftiofur Crystalline Free Acid (1) and Pentobarbital Sodium + Phenytoin Sodium (1).
Outcome coding on 4 status-recorded reports is dominated by Ongoing (25.0%). Annual submissions ranged 2,011-2,024 across 4 years on file.
Horse Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Hackney? ▼
There are 5 adverse event reports involving Hackney in the FDA database, with 1 reports involving death (20.0% death rate). Hackney ranks #487 by report volume.
What are the most common adverse reactions reported for Hackney? ▼
The most commonly reported adverse reactions for Hackney are Injection site swelling (2 reports), Injection site abscess (1 reports), INEFFECTIVE, EUTHANASIA (1 reports), INEFFECTIVE, DELAYED EFFECT (1 reports), Application site swelling (1 reports).
What drugs are most frequently associated with Hackney adverse events? ▼
The drugs most frequently referenced in Hackney adverse event reports are Ceftiofur (1 reports), Ceftiofur Crystalline Free Acid (1 reports), Pentobarbital Sodium + Phenytoin Sodium (1 reports), Ivermectin + Praziquantel (1 reports), Pergolide Mesylate (1 reports).
What is the average age of Hackney in adverse event reports? ▼
The average age of Hackney at the time of adverse event reports is 15.7 years, with an average weight of 271.1 kg (597.8 lbs).
Does a high number of adverse event reports mean Hackney 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 Hackney 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.