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Breed profile · FDA CVM July 2026 extract

Terrier - Welsh adverse-event record

Adverse-event filings for Terrier - Welsh (Dog) in the FDA Center for Veterinary Medicine openFDA extract. Browse dog breeds, reactions, and outcomes below.

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#159 of 510
by report volume (all breeds)
347
FDA CVM reports on file
4.0%
death-coded share of reports
#176 of 275
by death-coded share (≥50 reports)

How the 347 reports break down

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

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 21 15.75 10.5 5.25 0 2019 2020 2021 2022 2023 2024 2025 2026 Reports filed Death-coded reports
Annual report volume for Terrier - Welsh drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Terrier - Welsh ranks #159 of 510 by total reports (347) and #176 of 275 by death-coded share (4.0%). 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)
#159
This breed, reports of 510
#176
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. Terrier - Welsh has 347 reports now versus 344 in that prior snapshot: 3 more (0.9%).

Report change
+3
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 Terrier - Welsh changes

Total Reports

347

Above-median volume

Deaths Reported

14

of 347 reports

Death-coded share of reports

4.0%

Below-median death-coded share

Avg Age at Report

6.7 yr

10.3 kg avg weight

Breed Safety Scorecard

C- (51/100)

A weighted composite across 4 of 4 dimensions, each benchmarked against every tracked breed with at least 200 reports (n=185). Dimensions with insufficient data drop out and their weight redistributes to the rest, so a missing input never silently deflates the score.

Death rate C+
4.0%

Share of reports coded as a fatality

Euthanasia rate F
2.6%

Share of reports resulting in euthanasia

Full recovery rate B-
33.4%

Share of reports coded "Recovered/Normal"

5-year trend F
+54%

Change in annual report volume over the last 5 complete years

Death-Coded Outcome Share

Terrier - Welsh death-coded reports 4.0%
Cross-breed median

4.0% of 347 terrier - welsh 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 Terrier - Welsh's death-coded share sits among indexed breeds

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

4% 36th percentile Higher share than 36% 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. Terrier - Welsh 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: 10.3 kg (22.7 lbs)

Top Reported Reactions

Vomiting 87
Lethargy (see also Central nervous system depression in 'Neurological') 51
Diarrhoea 46
Emesis 33
Lack of efficacy (endoparasite) - hookworm 22
Seizure NOS 17
Digestive tract disorder NOS 15
Lack of efficacy (ectoparasite) - flea 14

Most Referenced Drugs

Milbemycin Oxime + Spinosad 58
Ivermectin + Pyrantel As Pamoate Salt 35
Afoxolaner 32
Oclacitinib Maleate 29
Pyrantel Pamoate;Sarolaner 17
Cyclosporine 16
Spinosad 16
Moxidectin 15

Outcome Breakdown

Recovered/Normal
116 (35.8%)
Ongoing
92 (28.4%)
Outcome Unknown
88 (27.2%)
Recovered with Sequela
14 (4.3%)
Euthanized
9 (2.8%)
Died
5 (1.5%)

Gender Distribution

Male 180 (51.9%)
Female 165 (47.6%)
Mixed 1 (0.3%)
Unknown 1 (0.3%)

Reports by Year

Year Reports Trend
2010 13
2011 14
2012 31
2013 23
2014 34
2015 35
2016 26
2017 28
2018 26
2019 19
2020 13
2021 13
2022 15
2023 13
2024 21
2025 20
2026 3

Terrier - Welsh: high-volume FDA adverse-event cohort

Signature read: 347 reports place Terrier - Welsh in the upper third of breed filing volume (#159 of 510). According to FDA CVM filings indexed on PlainBreed as of July 2026 extract, Terrier - Welsh sits at #159 of 510 by report volume among all breeds and #129 of 298 among dog breeds, with 347 reports and 14 (4.0%) death-coded. On death-coded share among breeds with ≥50 reports, it ranks #176 of 275. Mean age at report: 6.7 years, average weight 10.3 kg (22.7 lbs).

Top reported signs: Vomiting (87), Lethargy (see also Central nervous system depression in 'Neurological') (51), Diarrhoea (46). Most-referenced drug: Milbemycin Oxime + Spinosad (58 reports), followed by Ivermectin + Pyrantel As Pamoate Salt (35) and Afoxolaner (32).

Outcome coding on 324 status-recorded reports is dominated by Recovered/Normal (35.8%). Annual submissions ranged 3-2,026 across 17 years on file.

Dog Breeds With a Similar Report Volume

Showing 6 of 297 dog breeds in our dataset, ranked by closest report volume.

Coonhound - Bluetick
343 reports · 3.2% death-coded
Schnauzer - Giant
357 reports · 6.2% death-coded
Schipperke
336 reports · 4.8% death-coded
Spitz - Dutch (Keeshond)
335 reports · 6.9% death-coded
Terrier - Border
332 reports · 3.0% death-coded
Collie - Rough-haired
367 reports · 5.2% death-coded

Nationwide breeds with similar profiles

High-volume peer sets for Terrier - Welsh drawn from openFDA outside the Dog 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 (4.0% death-coded here).

Siberian 4.2% · Cat British cat 3.8% · Cat American Curl Shorthair 3.5% · Cat Bengal 4.6% · Cat

Similar average weight

Nearest other-species breeds by reported average weight (10.3 kg here).

Primate (other) 10.1 kg · Primate Monkey (unspecified) 11.6 kg · Monkey Nigerian Dwarf 7.5 kg · Goat Wild cat 14.5 kg · Cat

What to do with this dog

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 Terrier - Welsh? ▼
There are 347 adverse event reports involving Terrier - Welsh in the FDA database, of which 14 were death-coded (4.0% 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, Terrier - Welsh ranks #159 of 510 by report volume among all breeds PlainBreed indexes (#129 of 298 among dog breeds).
Where does Terrier - Welsh sit among other breeds in PlainBreed's corpus? ▼
According to FDA CVM report volume, Terrier - Welsh is #159 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Dog, it is #129 of 298. Among breeds with at least 50 reports, its death-coded share ranks #176 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 Terrier - Welsh? ▼
The most commonly reported adverse reactions for Terrier - Welsh are Vomiting (87 reports), Lethargy (see also Central nervous system depression in 'Neurological') (51 reports), Diarrhoea (46 reports), Emesis (33 reports), Lack of efficacy (endoparasite) - hookworm (22 reports).
What drugs are most frequently associated with Terrier - Welsh adverse events? ▼
The drugs most frequently referenced in Terrier - Welsh adverse event reports are Milbemycin Oxime + Spinosad (58 reports), Ivermectin + Pyrantel As Pamoate Salt (35 reports), Afoxolaner (32 reports), Oclacitinib Maleate (29 reports), Pyrantel Pamoate;Sarolaner (17 reports).
What is the average age of Terrier - Welsh in adverse event reports? ▼
The average age of Terrier - Welsh at the time of adverse event reports is 6.7 years, with an average weight of 10.3 kg (22.7 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 Terrier - Welsh (Dog), extract as of July 2026 extract. 347 reports · 14 death-coded (4.0% of reports, not a mortality rate) · #159 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 →