Total Reports
998
FDA CVM filings
Dog /
FDA CVM · 2025 release 998 reports on file
Terrier - Bull - FDA Adverse Event Profile
Adverse-event records for Terrier - Bull (Dog) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Among dog breeds, Terrier - Bull is #110 by FDA report volume; 4.3% of its 998 reports (43) were death-coded.
- #110
- most-reported dog breed
- 4.3%
- death-coded report share
- 180
- Vomiting - top reaction
- 5.1 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
43
of 998 reports
Death Rate
4.3%
death-coded share
Avg Age at Report
5.1 yr
24.0 kg avg weight
Death-Coded Outcome Share
Terrier - Bull death-coded reports 4.3%
Cross-breed median
4.3% of 998 terrier - bull 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: 24.0 kg (52.9 lbs)
Top Reported Reactions
Vomiting 180
Diarrhoea 86
Lack of efficacy (endoparasite) - heartworm 85
Lethargy (see also Central nervous system depression in 'Neurological') 79
Lack of efficacy - NOS 63
INEFFECTIVE, HEARTWORM LARVAE 59
Emesis 55
Lack of efficacy (ectoparasite) - flea 47
Most Referenced Drugs
Milbemycin Oxime + Spinosad 143
Oclacitinib Maleate 111
Ivermectin + Pyrantel As Pamoate Salt 101
Bedinvetmab 65
Moxidectin 57
Afoxolaner 52
Pyrantel Pamoate;Sarolaner 49
Spinosad 48
Outcome Breakdown
Ongoing
302 (33.0%)
Outcome Unknown
279 (30.5%)
Recovered/Normal
245 (26.7%)
Recovered with Sequela
47 (5.1%)
Died
23 (2.5%)
Euthanized
20 (2.2%)
Gender Distribution
Female 500 (50.1%)
Male 482 (48.3%)
Unknown 14 (1.4%)
Mixed 2 (0.2%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 38 | |
| 2011 | 58 | |
| 2012 | 53 | |
| 2013 | 57 | |
| 2014 | 75 | |
| 2015 | 73 | |
| 2016 | 71 | |
| 2017 | 81 | |
| 2018 | 61 | |
| 2019 | 58 | |
| 2020 | 46 | |
| 2021 | 48 | |
| 2022 | 50 | |
| 2023 | 73 | |
| 2024 | 107 | |
| 2025 | 49 | |
Terrier - Bull Pet Health Insights
Terrier - Bull accounts for 998 FDA adverse event reports, ranking #110 by volume among dog breeds, with 43 reports (4.3%) coded as a death outcome. Mean age at report: 5.1 years, average weight 24.0 kg (52.9 lbs).
Top reported signs: Vomiting (180), Diarrhoea (86), Lack of efficacy (endoparasite) - heartworm (85). Most-referenced drug: Milbemycin Oxime + Spinosad (143 reports), followed by Oclacitinib Maleate (111) and Ivermectin + Pyrantel As Pamoate Salt (101).
Outcome coding on 916 status-recorded reports is dominated by Ongoing (33.0%). Annual submissions ranged 2,010-2,025 across 16 years on file.
Dog Breeds With a Similar Report Volume
Bloodhound
1,020 reports · 3.3% death rate
Spaniel - Springer (unspecified)
952 reports · 5.0% death rate
Retriever - Chesapeake Bay
1,051 reports · 2.9% death rate
Akita
1,083 reports · 5.1% death rate
Bulldog - English
913 reports · 8.7% death rate
Dachshund - Standard Long-haired
1,104 reports · 5.7% death rate
Frequently Asked Questions
How many FDA adverse event reports involve Terrier - Bull? ▼
There are 998 adverse event reports involving Terrier - Bull in the FDA database, with 43 reports involving death (4.3% death rate). Terrier - Bull ranks #110 by report volume.
What are the most common adverse reactions reported for Terrier - Bull? ▼
The most commonly reported adverse reactions for Terrier - Bull are Vomiting (180 reports), Diarrhoea (86 reports), Lack of efficacy (endoparasite) - heartworm (85 reports), Lethargy (see also Central nervous system depression in 'Neurological') (79 reports), Lack of efficacy - NOS (63 reports).
What drugs are most frequently associated with Terrier - Bull adverse events? ▼
The drugs most frequently referenced in Terrier - Bull adverse event reports are Milbemycin Oxime + Spinosad (143 reports), Oclacitinib Maleate (111 reports), Ivermectin + Pyrantel As Pamoate Salt (101 reports), Bedinvetmab (65 reports), Moxidectin (57 reports).
What is the average age of Terrier - Bull in adverse event reports? ▼
The average age of Terrier - Bull at the time of adverse event reports is 5.1 years, with an average weight of 24.0 kg (52.9 lbs).
Does a high number of adverse event reports mean Terrier - Bull 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 - Bull 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.