Total Reports
4,266
FDA CVM filings
Dog /
FDA CVM · 2025 release 4,266 reports on file
Terrier - West Highland White - FDA Adverse Event Profile
Adverse-event records for Terrier - West Highland White (Dog) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Among dog breeds, Terrier - West Highland White is #46 by FDA report volume; 4.9% of its 4,266 reports (211) were death-coded.
- #46
- most-reported dog breed
- 4.9%
- death-coded report share
- 1,015
- Vomiting - top reaction
- 7.4 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
211
of 4,266 reports
Death Rate
4.9%
death-coded share
Avg Age at Report
7.4 yr
8.7 kg avg weight
Death-Coded Outcome Share
Terrier - West Highland White death-coded reports 4.9%
Cross-breed median
4.9% of 4,266 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 (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: 8.7 kg (19.2 lbs)
Top Reported Reactions
Vomiting 1,015
Emesis 502
Lethargy (see also Central nervous system depression in 'Neurological') 437
Diarrhoea 370
Lack of efficacy - NOS 262
Lack of efficacy (ectoparasite) - flea 214
Anorexia 207
Other abnormal test result NOS 160
Lack of efficacy (endoparasite) - hookworm 154
Deafness 133
Death by euthanasia 127
Behavioural disorder NOS 121
Digestive tract disorder NOS 116
Elevated serum alkaline phosphatase (SAP) 116
Polydipsia 115
Most Referenced Drugs
Milbemycin Oxime + Spinosad 832
Oclacitinib Maleate 395
Spinosad 322
Ivermectin + Pyrantel As Pamoate Salt 270
Cyclosporine 220
Afoxolaner 209
Fluralaner Chew Tablets 158
Cyclosporine A 151
Pyrantel Pamoate;Sarolaner 146
Moxidectin 110
Prednisone 97
Trilostane 92
Milbemycin Oxime + Praziquantel 84
Sarolaner 81
Carprofen 79
Outcome Breakdown
Recovered/Normal
1,519 (39.8%)
Outcome Unknown
987 (25.9%)
Ongoing
923 (24.2%)
Recovered with Sequela
177 (4.6%)
Euthanized
111 (2.9%)
Died
100 (2.6%)
Gender Distribution
Male 2,224 (52.1%)
Female 1,938 (45.4%)
Unknown 92 (2.2%)
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 | 133 | |
| 2024 | 171 | |
| 2025 | 108 | |
Terrier - West Highland White Pet Health Insights
Terrier - West Highland White accounts for 4,266 FDA adverse event reports, ranking #46 by volume among dog breeds, with 211 reports (4.9%) coded as a death outcome. Mean age at report: 7.4 years, average weight 8.7 kg (19.2 lbs).
Top reported signs: Vomiting (1,015), Emesis (502), Lethargy (see also Central nervous system depression in 'Neurological') (437). Most-referenced drug: Milbemycin Oxime + Spinosad (832 reports), followed by Oclacitinib Maleate (395) and Spinosad (322).
Outcome coding on 3,817 status-recorded reports is dominated by Recovered/Normal (39.8%). Annual submissions ranged 2,010-2,025 across 16 years on file.
Dog Breeds With a Similar Report Volume
Great Pyrenees
4,292 reports · 3.8% death rate
Deutsche Dogge, Great Dane
4,227 reports · 6.0% death rate
Dachshund - Miniature
4,095 reports · 4.6% death rate
Poodle - Toy
4,084 reports · 4.0% death rate
Sheepdog - Shetland
4,080 reports · 6.6% death rate
Poodle - Standard
4,455 reports · 3.1% death rate
Frequently Asked Questions
How many FDA adverse event reports involve Terrier - West Highland White? ▼
There are 4,266 adverse event reports involving Terrier - West Highland White in the FDA database, with 211 reports involving death (4.9% death rate). Terrier - West Highland White ranks #46 by report volume.
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 (1,015 reports), Emesis (502 reports), Lethargy (see also Central nervous system depression in 'Neurological') (437 reports), Diarrhoea (370 reports), Lack of efficacy - NOS (262 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 (395 reports), Spinosad (322 reports), Ivermectin + Pyrantel As Pamoate Salt (270 reports), Cyclosporine (220 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).
Does a high number of adverse event reports mean Terrier - West Highland White 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 Terrier - West Highland White 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.