Total Reports
19
FDA CVM filings
Dog /
FDA CVM · 2025 release 19 reports on file
Terrier - Parson Russell - FDA Adverse Event Profile
Adverse-event records for Terrier - Parson Russell (Dog) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Among dog breeds, Terrier - Parson Russell is #368 by FDA report volume; 10.5% of its 19 reports (2) were death-coded.
- #368
- most-reported dog breed
- 10.5%
- death-coded report share
- 3
- Vomiting - top reaction
- 6.2 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
2
of 19 reports
Death Rate
10.5%
death-coded share
Avg Age at Report
6.2 yr
8.2 kg avg weight
Death-Coded Outcome Share
Terrier - Parson Russell death-coded reports 10.5%
Cross-breed median
10.5% of 19 terrier - parson russell 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: 8.2 kg (18.1 lbs)
Top Reported Reactions
Vomiting 3
Accidental exposure 3
Ataxia 3
Lack of efficacy (ectoparasite) - flea 3
Diarrhoea 2
Most Referenced Drugs
Fluralaner 13.64% 12-Week Chew 5
Ivermectin 3
Milbemycin Oxime + Spinosad 3
Ivermectin + Pyrantel As Pamoate Salt 2
Fenbendazol Granules 2
Outcome Breakdown
Ongoing
8 (42.1%)
Recovered/Normal
5 (26.3%)
Recovered with Sequela
3 (15.8%)
Outcome Unknown
1 (5.3%)
Euthanized
1 (5.3%)
Died
1 (5.3%)
Gender Distribution
Female 11 (57.9%)
Male 8 (42.1%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2017 | 3 | |
| 2018 | 1 | |
| 2019 | 5 | |
| 2021 | 1 | |
| 2022 | 3 | |
| 2023 | 5 | |
| 2024 | 1 | |
Terrier - Parson Russell Pet Health Insights
Terrier - Parson Russell accounts for 19 FDA adverse event reports, ranking #368 by volume among dog breeds, with 2 reports (10.5%) coded as a death outcome. Mean age at report: 6.2 years, average weight 8.2 kg (18.1 lbs).
Top reported signs: Vomiting (3), Accidental exposure (3), Ataxia (3). Most-referenced drug: Fluralaner 13.64% 12-Week Chew (5 reports), followed by Ivermectin (3) and Milbemycin Oxime + Spinosad (3).
Outcome coding on 19 status-recorded reports is dominated by Ongoing (42.1%). Annual submissions ranged 2,017-2,024 across 7 years on file.
Dog Breeds With a Similar Report Volume
Akbash Dog
19 reports · 10.5% death rate
Basset - Fawn Brittany
19 reports · 0.0% death rate
Basset - Griffon Vendeen (unspecified)
19 reports · 10.5% death rate
Berger Picard or Sheepdog - Picardy
19 reports · 10.5% death rate
Foxhound - English
19 reports · 5.3% death rate
Little Lion Dog
19 reports · 0.0% death rate
Frequently Asked Questions
How many FDA adverse event reports involve Terrier - Parson Russell? ▼
There are 19 adverse event reports involving Terrier - Parson Russell in the FDA database, with 2 reports involving death (10.5% death rate). Terrier - Parson Russell ranks #368 by report volume.
What are the most common adverse reactions reported for Terrier - Parson Russell? ▼
The most commonly reported adverse reactions for Terrier - Parson Russell are Vomiting (3 reports), Accidental exposure (3 reports), Ataxia (3 reports), Lack of efficacy (ectoparasite) - flea (3 reports), Diarrhoea (2 reports).
What drugs are most frequently associated with Terrier - Parson Russell adverse events? ▼
The drugs most frequently referenced in Terrier - Parson Russell adverse event reports are Fluralaner 13.64% 12-Week Chew (5 reports), Ivermectin (3 reports), Milbemycin Oxime + Spinosad (3 reports), Ivermectin + Pyrantel As Pamoate Salt (2 reports), Fenbendazol Granules (2 reports).
What is the average age of Terrier - Parson Russell in adverse event reports? ▼
The average age of Terrier - Parson Russell at the time of adverse event reports is 6.2 years, with an average weight of 8.2 kg (18.1 lbs).
Does a high number of adverse event reports mean Terrier - Parson Russell 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 - Parson Russell 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.