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Breed profile · FDA CVM July 2026 extract

Terrier - West Highland White adverse-event record

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

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#47 of 510
by report volume (all breeds)
4,343
FDA CVM reports on file
4.9%
death-coded share of reports
#136 of 275
by death-coded share (≥50 reports)

How the 4,343 reports break down

By recorded gender -- every report on file for Terrier - West Highland White, no filtering.

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 223 167.25 111.5 55.75 0 2019 2020 2021 2022 2023 2024 2025 2026 Reports filed Death-coded reports
Annual report volume for Terrier - West Highland White drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Terrier - West Highland White ranks #47 of 510 by total reports (4,343) and #136 of 275 by death-coded share (4.9%). 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)
#47
This breed, reports of 510
#136
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 - West Highland White has 4,343 reports now versus 4,307 in that prior snapshot: 36 more (0.8%).

Report change
+36
Death-coded reports
+1
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 - West Highland White changes

Total Reports

4,343

Highest-reported breed

Deaths Reported

212

of 4,343 reports

Death-coded share of reports

4.9%

Above-median death-coded share

Avg Age at Report

7.4 yr

8.7 kg avg weight

Breed Safety Scorecard

C (57/100)

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 D
4.9%

Share of reports coded as a fatality

Euthanasia rate F
2.6%

Share of reports resulting in euthanasia

Full recovery rate B+
35.4%

Share of reports coded "Recovered/Normal"

5-year trend B-
-9%

Change in annual report volume over the last 5 complete years

Death-Coded Outcome Share

Terrier - West Highland White death-coded reports 4.9%
Cross-breed median

4.9% of 4,343 terrier - west highland white 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 - West Highland White's death-coded share sits among indexed breeds

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

5% 51st percentile Higher share than 51% 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 - West Highland White 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.

Terrier - West Highland White among report-volume vs. death-rate peers

Every breed shown has at least 50 filed reports. Volume reflects how often a breed is reported, not how common it is; death rate is the share of a breed's own reports coded as a death outcome.

Source: FDA openFDA Animal & Veterinary Adverse Events database 2×2 strategic matrix plotting 30 entities by Total Reports (X) and Death Rate (%) (Y), with a crosshair dividing the plot into four quadrants. High volume, high death rateLow volume, high death rateHigh volume, low death rateLow volume, low death rate 020,00040,00060,00080,000100,000 0%5%10%15% Total Reports Death Rate (%) Terrier - West Highland White vs. all breeds, report volume and death-coded share Retriever - Labrador-93675, 3.7%Crossbred Canine/dog-70591, 3.2%Domestic Shorthair-65226, 7.2%Dog (unknown)-48820, 8.8%Retriever - Golden-35980, 3.7%Shepherd Dog - German-32220, 4.4%Chihuahua-31521, 4.2%Terrier - Yorkshire-24924, 3.7%Shih Tzu-24405, 3.6%Boxer (German Boxer)-19405, 4.4%Beagle-17970, 3.6%Pit Bull-17865, 3.1%Shepherd Dog - Australian-16274, 3.7%Terrier (unspecified)-14058, 3.1%Maltese-13940, 3.2%Dachshund (unspecified)-13512, 4.6%Cat (unknown)-13248, 9.3%Terrier - Jack Russell-10423, 3.7%Collie - Border-10130, 4.3%Siberian Husky-9811, 4.5%Domestic Longhair-9615, 7%Pug-9224, 5.2%Spitz - German Pomeranian-9086, 4.9%Terrier - Bull - American Pit-8769, 4.7%Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog)-7871, 3.6%Terrier - Boston-7737, 4.5%Spaniel - Cocker American-7640, 4%Domestic (unspecified)-7576, 13.4%Poodle (unspecified)-7534, 3.4%Schnauzer - Miniature-7513, 4.4%
Source: FDA openFDA Animal & Veterinary Adverse Events database
Average weight at time of report: 8.7 kg (19.2 lbs)

Top Reported Reactions

Vomiting 1,029
Emesis 502
Lethargy (see also Central nervous system depression in 'Neurological') 437
Diarrhoea 378
Lack of efficacy - NOS 270
Lack of efficacy (ectoparasite) - flea 222
Anorexia 207
Other abnormal test result NOS 163
Lack of efficacy (endoparasite) - hookworm 156
Deafness 134
Death by euthanasia 128
Behavioural disorder NOS 123
Polydipsia 116
Digestive tract disorder NOS 116
Elevated serum alkaline phosphatase (SAP) 116

Most Referenced Drugs

Milbemycin Oxime + Spinosad 832
Oclacitinib Maleate 405
Spinosad 323
Ivermectin + Pyrantel As Pamoate Salt 274
Cyclosporine 224
Afoxolaner 210
Fluralaner Chew Tablets 158
Pyrantel Pamoate;Sarolaner 158
Cyclosporine A 151
Moxidectin 116
Prednisone 98
Trilostane 96
Milbemycin Oxime + Praziquantel 85
Anti-Il31 Mab Mcs Lot #1283563 81
Sarolaner 81

Outcome Breakdown

Recovered/Normal
1,539 (39.5%)
Outcome Unknown
1,010 (25.9%)
Ongoing
953 (24.5%)
Recovered with Sequela
180 (4.6%)
Euthanized
112 (2.9%)
Died
100 (2.6%)

Gender Distribution

Male 2,270 (52.3%)
Female 1,968 (45.3%)
Unknown 93 (2.1%)
Mixed 12 (0.3%)

Reports by Year

Year Reports Trend
2010 226
2011 291
2012 416
2013 401
2014 406
2015 374
2016 351
2017 355
2018 273
2019 223
2020 199
2021 176
2022 163
2023 134
2024 173
2025 160
2026 22

Terrier - West Highland White: high-volume FDA adverse-event cohort

Signature read: 4,343 reports place Terrier - West Highland White in the upper third of breed filing volume (#47 of 510). According to FDA CVM filings indexed on PlainBreed as of July 2026 extract, Terrier - West Highland White sits at #47 of 510 by report volume among all breeds and #41 of 298 among dog breeds, with 4,343 reports and 212 (4.9%) death-coded. On death-coded share among breeds with ≥50 reports, it ranks #136 of 275. Mean age at report: 7.4 years, average weight 8.7 kg (19.2 lbs).

Top reported signs: Vomiting (1,029), Emesis (502), Lethargy (see also Central nervous system depression in 'Neurological') (437). Most-referenced drug: Milbemycin Oxime + Spinosad (832 reports), followed by Oclacitinib Maleate (405) and Spinosad (323).

Outcome coding on 3,894 status-recorded reports is dominated by Recovered/Normal (39.5%). Annual submissions ranged 22-2,026 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.

Deutsche Dogge, Great Dane
4,353 reports · 6.0% death-coded
Dachshund - Miniature
4,234 reports · 4.6% death-coded
Poodle - Toy
4,180 reports · 4.0% death-coded
Great Pyrenees
4,513 reports · 3.8% death-coded
Sheepdog - Shetland
4,159 reports · 6.7% death-coded
Doberman Pinscher
4,631 reports · 5.7% death-coded

Nationwide breeds with similar profiles

High-volume peer sets for Terrier - West Highland White 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 (4.9% death-coded here).

Scottish Fold Longhair 4.8% · Cat Bengal 4.6% · Cat Egyptian Mau 5.3% · Cat Siberian 4.2% · Cat

Similar average weight

Nearest other-species breeds by reported average weight (8.7 kg here).

Nigerian Dwarf 7.5 kg · Goat Primate (other) 10.1 kg · Primate Maine Coon 6.1 kg · Cat Norwegian Forest 5.8 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 - West Highland White? ▼
There are 4,343 adverse event reports involving Terrier - West Highland White in the FDA database, of which 212 were death-coded (4.9% 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, Terrier - West Highland White ranks #47 of 510 by report volume among all breeds PlainBreed indexes (#41 of 298 among dog breeds).
Where does Terrier - West Highland White sit among other breeds in PlainBreed's corpus? ▼
According to FDA CVM report volume, Terrier - West Highland White is #47 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Dog, it is #41 of 298. Among breeds with at least 50 reports, its death-coded share ranks #136 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 - West Highland White? ▼
The most commonly reported adverse reactions for Terrier - West Highland White are Vomiting (1,029 reports), Emesis (502 reports), Lethargy (see also Central nervous system depression in 'Neurological') (437 reports), Diarrhoea (378 reports), Lack of efficacy - NOS (270 reports).
What drugs are most frequently associated with Terrier - West Highland White adverse events? ▼
The drugs most frequently referenced in Terrier - West Highland White adverse event reports are Milbemycin Oxime + Spinosad (832 reports), Oclacitinib Maleate (405 reports), Spinosad (323 reports), Ivermectin + Pyrantel As Pamoate Salt (274 reports), Cyclosporine (224 reports).
What is the average age of Terrier - West Highland White in adverse event reports? ▼
The average age of Terrier - West Highland White at the time of adverse event reports is 7.4 years, with an average weight of 8.7 kg (19.2 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 - West Highland White (Dog), extract as of July 2026 extract. 4,343 reports · 212 death-coded (4.9% of reports, not a mortality rate) · #47 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 →