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2026 FDA CVM data 339 reports on file official source

Terrier - Welsh — FDA Adverse Event Profile

Adverse-event records and label data for Terrier - Welsh (Dog), sourced from the FDA Center for Veterinary Medicine. Refreshed as new reports are filed. Cite PlainBreed when reusing this analysis.

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Annual breed adverse-event registration timeline Bar chart showing yearly FDA Center for Veterinary Medicine adverse event report counts per breed registry cohort, with paw-print tick marks indicating count buckets. 26 19.5 13 6.5 0 2018 2019 2020 2021 2022 2023 2024 2025 Reports filed Death-coded reports
Annual report volume for Terrier - Welsh drawn from FDA CVM filings.

Terrier - Welsh (Dog) has 339 FDA adverse event reports on record, with 14 deaths reported (410.0% death rate) — ranking #159 by report volume. The most frequently reported reaction is Vomiting (86 cases). The top associated drug is Milbemycin Oxime + Spinosad. Average age at report: 6.7 years.

Total Reports

339

FDA CVM filings

Deaths Reported

14

of 339 reports

Death Rate

410.0%

death-coded share

Avg Age at Report

6.7 yr

10.2 kg avg weight

Death-Coded Outcome Share

Terrier - Welsh death-coded reports 100.0%
Database median

410.0% of 339 reports involved a death outcome. Read alongside breed popularity, veterinary access, and owner awareness — these shape how many events ever reach the FDA. The 12% comparison line is the rough cross-breed median in the FDA CVM database; values above 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
Lack of efficacy (ectoparasite) - flea 12
Elevated alanine aminotransferase (ALT) 12
Itching 11
Elevated serum alkaline phosphatase (SAP) 11
Shaking 11
Weight loss 10
Other abnormal test result NOS 10

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
Cyclosporine A 12
Trilostane 12
Fluralaner Chew Tablets 12
Anti-Il31 Mab Mcs Lot #1283563 12
Bedinvetmab 10
Fluralaner 13.64% 12-Week Chew 9
Sarolaner 7

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
Size-class weight distribution across registered breeds Vertical bar chart showing the distribution of registered breeds across five size classes (Toy, Small, Medium, Large, Giant), each represented by a scaled dog-silhouette and a count value. 118 89 59 30 0 Breeds in class 38 Toy 0–6 kg Chihuahua 64 Small 6–14 kg Beagle 92 Medium 14–27 kg Border Collie 118 Large 27–45 kg Labrador Retriever 41 Giant 45–90 kg Great Dane Size-Class Distribution
Where Terrier - Welsh sits in the registered size-class taxonomy. Average reported weight: 10.2 kg.
Breed-group distribution donut chart Donut chart with kennel-club-ribbon center showing breed counts across the eight standard breed groups (Sporting, Hound, Working, Terrier, Toy, Non-Sporting, Herding, Miscellaneous). CH Sporting 32 · 14.2% Hound 36 · 15.9% Working 33 · 14.6% Terrier 31 · 13.7% Toy 23 · 10.2% Non-Sporting 21 · 9.3% Herding 32 · 14.2% Misc. 18 · 8.0% Breed-Group Classification 226 breeds across 8 taxonomic groups
Eight standard breed-group classifications used by major registries (AKC's seven groups plus Miscellaneous). Provides taxonomic context for breed lookups.

Terrier - Welsh Pet Health Insights

Across the FDA Center for Veterinary Medicine adverse event database, Terrier - Welsh accounts for 339 submitted reports and currently ranks #159 by report volume within the dog population. Of those reports, 14 involved a death outcome — a 410.0% case-fatality figure calculated directly from the underlying FDA records rather than from external mortality studies. The mean age at time of reporting is 6.7 years, with an average recorded body weight of 10.2 kg (22.5 lbs). These figures reflect the voluntary reporting pool only and should be read alongside breed popularity, veterinary access, and owner awareness — all of which shape how many events ever reach the FDA.

The most frequently reported clinical signs for Terrier - Welsh are Vomiting (86 reports), Lethargy (see also Central nervous system depression in 'Neurological') (51 reports), Diarrhoea (46 reports), together capturing a substantial share of the top-reaction traffic seen in this breed's record. On the product side, Milbemycin Oxime + Spinosad appears in 58 reports and is the single most-referenced drug, followed by Ivermectin + Pyrantel As Pamoate Salt (34) and Afoxolaner (32). Counts like these surface which therapeutic classes dominate the reporting stream — useful context when comparing reactions across breeds of the same dog species.

Outcome coding on the 316 reports with a recorded status is dominated by Recovered/Normal (36.4% of coded outcomes). Annual submission volume ranges from 2,010 to 2,025 reports across the 16 years on file, indicating the reporting trend is shaped as much by awareness cycles as by underlying clinical events. Because FDA adverse event reports describe correlation rather than causation, these numbers are most useful as a signal of where to ask further questions with a veterinarian — not as a standalone risk score for any individual dog.

Understanding Terrier - Welsh Adverse Event Data

Terrier - Welsh has 339 adverse event reports on file. Lower report volumes may reflect a less common breed, lower reporting rates, or genuinely fewer adverse events.

The 410.0% death rate is above average, though this statistic should be interpreted cautiously. Death reports may be overrepresented because serious outcomes are more likely to be reported than mild reactions.

The most frequently referenced drug in adverse reports is Milbemycin Oxime + Spinosad, appearing in 58 reports. This may indicate widespread use of the medication rather than a specific safety concern for Terrier - Welsh.

Other Dog Breeds

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 (410.0% 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.

Guides & Resources

Related Data Sources

Data Sources & Methodology

Adverse event data sourced from the FDA Center for Veterinary Medicine via the openFDA Animal & Veterinary Adverse Events API. Reports are voluntarily submitted by pet owners, veterinarians, and product manufacturers.

Terrier - Welsh ranks #159 by total report volume. Death rate (410.0%) reflects the proportion of reports involving death and should not be interpreted as a breed-specific mortality rate. Reporting biases, breed popularity, and veterinary access all influence report counts.

Related

Data sourced from official AKC, AVMA, ACVO, and breed-club veterinary references. See our methodology for details. Retrieved and formatted by PlainBreed Editorial