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Breed profile · FDA CVM July 2026 extract

Hanovarian adverse-event record

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

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#216 of 510
by report volume (all breeds)
137
FDA CVM reports on file
2.2%
death-coded share of reports
#258 of 275
by death-coded share (≥50 reports)

How the 137 reports break down

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

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 11 8.25 5.5 2.75 0 2019 2020 2021 2022 2023 2024 2025 2026 Reports filed Death-coded reports
Annual report volume for Hanovarian drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Hanovarian ranks #216 of 510 by total reports (137) and #258 of 275 by death-coded share (2.2%). 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)
#216
This breed, reports of 510
#258
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. Hanovarian has 137 reports now versus 135 in that prior snapshot: 2 more (1.5%).

Report change
+2
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 Hanovarian changes

Total Reports

137

Above-median volume

Deaths Reported

3

of 137 reports

Death-coded share of reports

2.2%

Lowest death-coded share

Avg Age at Report

12.9 yr

430.4 kg avg weight

Death-Coded Outcome Share

Hanovarian death-coded reports 2.2%
Cross-breed median

2.2% of 137 hanovarian 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 Hanovarian's death-coded share sits among indexed breeds

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

2% 6th percentile Higher share than 6% of 275 indexed breeds

5%–10%: 1 indexed breeds (0%). This entry sits in this band. 20%–25%: 2 indexed breeds (1%). Above this entry. 25%–30%: 3 indexed breeds (1%). Above this entry. 30%–35%: 4 indexed breeds (1%). Above this entry. 35%–40%: 5 indexed breeds (2%). Above this entry. 40%–45%: 6 indexed breeds (2%). Above this entry. 45%–50%: 3 indexed breeds (1%). Above this entry. 50%–55%: 7 indexed breeds (3%). Above this entry. 55%–60%: 7 indexed breeds (3%). Above this entry. 60%–65%: 21 indexed breeds (8%). Above this entry. 65%–70%: 11 indexed breeds (4%). Above this entry. 70%–75%: 15 indexed breeds (5%). Above this entry. 75%–80%: 13 indexed breeds (5%). Above this entry. 80%–85%: 11 indexed breeds (4%). Above this entry. 85%–90%: 12 indexed breeds (4%). Above this entry. 90%–95%: 12 indexed breeds (4%). Above this entry. 95%–100%: 142 indexed breeds (52%). Above this entry. Hanovarian 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: 430.4 kg (949.0 lbs)

Top Reported Reactions

INEFFECTIVE, GASTRIC ULCER(S) 26
Lack of efficacy - NOS 16
Injection site swelling 10
Partial lack of efficacy 8
Gastric ulcer 7
Application site swelling 6
Diarrhoea 6
Behavioural disorder NOS 6

Most Referenced Drugs

Omeprazole 33
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 16
Polysulfated Glycosaminoglycan 12
Omeprazole 37% Oral Paste 12
Ceftiofur Crystalline Free Acid 11
Firocoxib 9
Pergolide Mesylate 9
Sucralfate 8

Outcome Breakdown

Outcome Unknown
50 (42.0%)
Recovered/Normal
38 (31.9%)
Ongoing
26 (21.8%)
Died
3 (2.5%)
Recovered with Sequela
2 (1.7%)

Gender Distribution

Male 82 (59.9%)
Female 54 (39.4%)
Mixed 1 (0.7%)

Reports by Year

Year Reports Trend
2010 8
2011 4
2012 11
2013 14
2014 4
2015 10
2016 12
2017 11
2018 7
2019 6
2020 4
2021 11
2022 4
2023 10
2024 8
2025 11
2026 2

Hanovarian: low death-coded share in the FDA CVM extract

Signature read: Hanovarian's 2.2% death-coded share is in the lower third of the ≥50-report cohort (median 4.8%). According to FDA CVM filings indexed on PlainBreed as of July 2026 extract, Hanovarian sits at #216 of 510 by report volume among all breeds and #16 of 55 among horse breeds, with 137 reports and 3 (2.2%) death-coded. On death-coded share among breeds with ≥50 reports, it ranks #258 of 275. Mean age at report: 12.9 years, average weight 430.4 kg (949.0 lbs).

Top reported signs: INEFFECTIVE, GASTRIC ULCER(S) (26), Lack of efficacy - NOS (16), Injection site swelling (10). Most-referenced drug: Omeprazole (33 reports), followed by Ivermectin(1.55%)/Praziquantel(7.75%) Paste (16) and Polysulfated Glycosaminoglycan (12).

Outcome coding on 119 status-recorded reports is dominated by Outcome Unknown (42.0%). Annual submissions ranged 2-2,026 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.

Standardbred (unspecified)
141 reports · 14.9% death-coded
Morgan
145 reports · 10.3% death-coded
Pony (unspecified)
151 reports · 11.9% death-coded
Miniature
164 reports · 15.9% death-coded
Appaloosa
167 reports · 10.2% death-coded
Mixed (Horse)
103 reports · 15.5% death-coded

Nationwide breeds with similar profiles

Two openFDA-derived peer sets for Hanovarian, 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 (2.2% death-coded here).

Terrier - Irish 2.2% · Dog Terrier - American Staffordshire 2.2% · Dog Catahoula Leopard Dog 2.2% · Dog Havanese 2.1% · 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 Hanovarian? ▼
There are 137 adverse event reports involving Hanovarian in the FDA database, of which 3 were death-coded (2.2% 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, Hanovarian ranks #216 of 510 by report volume among all breeds PlainBreed indexes (#16 of 55 among horse breeds).
Where does Hanovarian sit among other breeds in PlainBreed's corpus? ▼
According to FDA CVM report volume, Hanovarian is #216 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Horse, it is #16 of 55. Among breeds with at least 50 reports, its death-coded share ranks #258 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 Hanovarian? ▼
The most commonly reported adverse reactions for Hanovarian are INEFFECTIVE, GASTRIC ULCER(S) (26 reports), Lack of efficacy - NOS (16 reports), Injection site swelling (10 reports), Partial lack of efficacy (8 reports), Gastric ulcer (7 reports).
What drugs are most frequently associated with Hanovarian adverse events? ▼
The drugs most frequently referenced in Hanovarian adverse event reports are Omeprazole (33 reports), Ivermectin(1.55%)/Praziquantel(7.75%) Paste (16 reports), Polysulfated Glycosaminoglycan (12 reports), Omeprazole 37% Oral Paste (12 reports), Ceftiofur Crystalline Free Acid (11 reports).
What is the average age of Hanovarian in adverse event reports? ▼
The average age of Hanovarian at the time of adverse event reports is 12.9 years, with an average weight of 430.4 kg (949.0 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 Hanovarian (Horse), extract as of July 2026 extract. 137 reports · 3 death-coded (2.2% of reports, not a mortality rate) · #216 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 →