Total Reports
27
FDA CVM filings
Dog /
FDA CVM · 2025 release 27 reports on file
Terrier - Sealyham - FDA Adverse Event Profile
Adverse-event records for Terrier - Sealyham (Dog) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Terrier - Sealyham ranks #327 by report volume among dog breeds - 2 of 27 reports (7.4%) recorded a death outcome.
- #327
- most-reported dog breed
- 7.4%
- death-coded report share
- 4
- Pain NOS - top reaction
- 6.6 yr
- average age at report
Higher volume usually means a more popular breed, not a riskier one, compare against how common the breed is.
Deaths Reported
2
of 27 reports
Death Rate
7.4%
death-coded share
Avg Age at Report
6.6 yr
12.4 kg avg weight
Death-Coded Outcome Share
Terrier - Sealyham death-coded reports 7.4%
Cross-breed median
7.4% of 27 terrier - sealyham 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: 12.4 kg (27.3 lbs)
Top Reported Reactions
Pain NOS 4
Lethargy (see also Central nervous system depression in 'Neurological') 4
Vomiting 3
Behavioural disorder NOS 3
Depression 3
Most Referenced Drugs
Milbemycin Oxime + Spinosad 4
Afoxolaner 3
Milbemycin/Lufenuron Tablets 3
Milbemycin 2
Trilostane 2
Outcome Breakdown
Recovered/Normal
10 (47.6%)
Ongoing
5 (23.8%)
Outcome Unknown
3 (14.3%)
Died
1 (4.8%)
Recovered with Sequela
1 (4.8%)
Euthanized
1 (4.8%)
Gender Distribution
Female 14 (51.9%)
Male 13 (48.1%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 5 | |
| 2012 | 3 | |
| 2014 | 4 | |
| 2016 | 1 | |
| 2018 | 2 | |
| 2019 | 1 | |
| 2020 | 1 | |
| 2021 | 3 | |
| 2022 | 2 | |
| 2023 | 3 | |
| 2024 | 1 | |
| 2025 | 1 | |
Terrier - Sealyham Pet Health Insights
Terrier - Sealyham accounts for 27 FDA adverse event reports, ranking #327 by volume among dog breeds, with 2 reports (7.4%) coded as a death outcome. Mean age at report: 6.6 years, average weight 12.4 kg (27.3 lbs).
Top reported signs: Pain NOS (4), Lethargy (see also Central nervous system depression in 'Neurological') (4), Vomiting (3). Most-referenced drug: Milbemycin Oxime + Spinosad (4 reports), followed by Afoxolaner (3) and Milbemycin/Lufenuron Tablets (3).
Outcome coding on 21 status-recorded reports is dominated by Recovered/Normal (47.6%). Annual submissions ranged 2,010-2,025 across 12 years on file.
Dog Breeds With a Similar Report Volume
Terrier - Dandie Dinmont
27 reports · 3.7% death rate
Basset - Griffon Vendeen Small
28 reports · 7.1% death rate
Coonhound - American English
26 reports · 0.0% death rate
Mastiff - Tibetan
28 reports · 7.1% death rate
Pointing Dog - English
26 reports · 11.5% death rate
Setter - Irish Red and White
26 reports · 0.0% death rate
Frequently Asked Questions
How many FDA adverse event reports involve Terrier - Sealyham? ▼
There are 27 adverse event reports involving Terrier - Sealyham in the FDA database, with 2 reports involving death (7.4% death rate). Terrier - Sealyham ranks #327 by report volume.
What are the most common adverse reactions reported for Terrier - Sealyham? ▼
The most commonly reported adverse reactions for Terrier - Sealyham are Pain NOS (4 reports), Lethargy (see also Central nervous system depression in 'Neurological') (4 reports), Vomiting (3 reports), Behavioural disorder NOS (3 reports), Depression (3 reports).
What drugs are most frequently associated with Terrier - Sealyham adverse events? ▼
The drugs most frequently referenced in Terrier - Sealyham adverse event reports are Milbemycin Oxime + Spinosad (4 reports), Afoxolaner (3 reports), Milbemycin/Lufenuron Tablets (3 reports), Milbemycin (2 reports), Trilostane (2 reports).
What is the average age of Terrier - Sealyham in adverse event reports? ▼
The average age of Terrier - Sealyham at the time of adverse event reports is 6.6 years, with an average weight of 12.4 kg (27.3 lbs).
Does a high number of adverse event reports mean Terrier - Sealyham 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 - Sealyham 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.