Total Reports
339
FDA CVM filings
Dog /
FDA CVM · 2025 release 339 reports on file
Terrier - Welsh - FDA Adverse Event Profile
Adverse-event records for Terrier - Welsh (Dog) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Among dog breeds, Terrier - Welsh is #159 by FDA report volume; 4.1% of its 339 reports (14) were death-coded.
- #159
- most-reported dog breed
- 4.1%
- death-coded report share
- 86
- Vomiting - top reaction
- 6.7 yr
- average age at report
Read report counts next to breed popularity: a bigger number often just means more owners and more vet visits.
Deaths Reported
14
of 339 reports
Death Rate
4.1%
death-coded share
Avg Age at Report
6.7 yr
10.2 kg avg weight
Death-Coded Outcome Share
Terrier - Welsh death-coded reports 4.1%
Cross-breed median
4.1% of 339 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 (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: 10.2 kg (22.5 lbs)
Top Reported Reactions
Vomiting 86
Lethargy (see also Central nervous system depression in 'Neurological') 51
Diarrhoea 46
Emesis 33
Lack of efficacy (endoparasite) - hookworm 20
Seizure NOS 17
Digestive tract disorder NOS 15
Lack of efficacy - NOS 13
Most Referenced Drugs
Milbemycin Oxime + Spinosad 58
Ivermectin + Pyrantel As Pamoate Salt 34
Afoxolaner 32
Oclacitinib Maleate 28
Cyclosporine 16
Spinosad 16
Pyrantel Pamoate;Sarolaner 15
Moxidectin 14
Outcome Breakdown
Recovered/Normal
115 (36.4%)
Outcome Unknown
88 (27.8%)
Ongoing
85 (26.9%)
Recovered with Sequela
14 (4.4%)
Euthanized
9 (2.8%)
Died
5 (1.6%)
Gender Distribution
Male 175 (51.6%)
Female 162 (47.8%)
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 | 15 | |
Terrier - Welsh Pet Health Insights
Terrier - Welsh accounts for 339 FDA adverse event reports, ranking #159 by volume among dog breeds, with 14 reports (4.1%) coded as a death outcome. Mean age at report: 6.7 years, average weight 10.2 kg (22.5 lbs).
Top reported signs: Vomiting (86), 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 (34) and Afoxolaner (32).
Outcome coding on 316 status-recorded reports is dominated by Recovered/Normal (36.4%). Annual submissions ranged 2,010-2,025 across 16 years on file.
Dog Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Terrier - Welsh? ▼
There are 339 adverse event reports involving Terrier - Welsh in the FDA database, with 14 reports involving death (4.1% death rate). Terrier - Welsh ranks #159 by report volume.
What are the most common adverse reactions reported for Terrier - Welsh? ▼
The most commonly reported adverse reactions for Terrier - Welsh are Vomiting (86 reports), Lethargy (see also Central nervous system depression in 'Neurological') (51 reports), Diarrhoea (46 reports), Emesis (33 reports), Lack of efficacy (endoparasite) - hookworm (20 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 (34 reports), Afoxolaner (32 reports), Oclacitinib Maleate (28 reports), Cyclosporine (16 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 10.2 kg (22.5 lbs).
Does a high number of adverse event reports mean Terrier - Welsh 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 - Welsh 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.