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Breed profile · FDA CVM July 2026 extract

Terrier - Toy Fox adverse-event record

Adverse-event filings for Terrier - Toy Fox (Dog) in the FDA Center for Veterinary Medicine openFDA extract. Browse dog breeds, reactions, and outcomes below.

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#220 of 510
by report volume (all breeds)
129
FDA CVM reports on file
3.9%
death-coded share of reports
#184 of 275
by death-coded share (≥50 reports)

How the 129 reports break down

By recorded gender -- every report on file for Terrier - Toy Fox, no filtering.

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 10 7.5 5 2.5 0 2019 2020 2021 2022 2023 2024 2025 2026 Reports filed Death-coded reports
Annual report volume for Terrier - Toy Fox drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Terrier - Toy Fox ranks #218 of 510 by total reports (129) and #184 of 275 by death-coded share (3.9%). National dual: Retriever - Labrador is #1 of 510 by total adverse-event reports (93,675) at death-coded-share rank 195 of 275 breeds with at least 50 reports (3.7%); separately, Atlantic Salmon (Salmo salar) is #1 highest death-coded share at 99.0% (report rank #233).

93,675
Retriever - Labrador reports (#1)
99.0%
Atlantic Salmon (Salmo salar) death share (#1)
#218
This breed, reports of 510
#184
This breed, death share of 275

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Terrier - Toy Fox has 129 reports now versus 126 in that prior snapshot: 3 more (2.4%).

Report change
+3
Death-coded reports
+0
Death-coded share
−0.1 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Terrier - Toy Fox changes

Total Reports

129

Above-median volume

Deaths Reported

5

of 129 reports

Death-coded share of reports

3.9%

Below-median death-coded share

Avg Age at Report

6.3 yr

5.5 kg avg weight

Death-Coded Outcome Share

Terrier - Toy Fox death-coded reports 3.9%
Cross-breed median

3.9% of 129 terrier - toy fox 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 (4.8%) among breeds with 50 or more reports; values above it suggest higher reporting bias toward severe outcomes, not necessarily higher true mortality.

Where Terrier - Toy Fox's death-coded share sits among indexed breeds

Death-coded share of FDA CVM reports, breeds with ≥50 reports (July 2026 extract)

4% 33rd percentile Higher share than 33% of 275 indexed breeds

5%–10%: 1 indexed breeds (0%). This entry sits in this band. 20%–25%: 2 indexed breeds (1%). Above this entry. 25%–30%: 3 indexed breeds (1%). Above this entry. 30%–35%: 4 indexed breeds (1%). Above this entry. 35%–40%: 5 indexed breeds (2%). Above this entry. 40%–45%: 6 indexed breeds (2%). Above this entry. 45%–50%: 3 indexed breeds (1%). Above this entry. 50%–55%: 7 indexed breeds (3%). Above this entry. 55%–60%: 7 indexed breeds (3%). Above this entry. 60%–65%: 21 indexed breeds (8%). Above this entry. 65%–70%: 11 indexed breeds (4%). Above this entry. 70%–75%: 15 indexed breeds (5%). Above this entry. 75%–80%: 13 indexed breeds (5%). Above this entry. 80%–85%: 11 indexed breeds (4%). Above this entry. 85%–90%: 12 indexed breeds (4%). Above this entry. 90%–95%: 12 indexed breeds (4%). Above this entry. 95%–100%: 142 indexed breeds (52%). Above this entry. Terrier - Toy Fox 5% 100% every breed with ≥50 FDA reports, bucketed by value

Each bar is a band; taller bars hold more indexed breeds. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FDA Center for Veterinary Medicine, openFDA adverse event extract (PlainBreed) · July 2026 extract

This histogram uses the same ≥50-report cohort as the highest death-coded share ranking. A higher share means more of this breed's reported events were death-coded, not a mortality rate for living animals.

Average weight at time of report: 5.5 kg (12.1 lbs)

Top Reported Reactions

Vomiting 38
Lethargy (see also Central nervous system depression in 'Neurological') 19
Lack of efficacy (ectoparasite) - flea 15
Emesis 14
Diarrhoea 14
Lack of efficacy - NOS 13
Behavioural disorder NOS 7
Shaking 7

Most Referenced Drugs

Milbemycin Oxime + Spinosad 55
Pyrantel Pamoate;Sarolaner 12
Spinosad 11
Selamectin 9
Milbemycin Oxime + Praziquantel 8
Fluralaner 13.64% 12-Week Chew 7
Moxidectin 6
Oclacitinib Maleate 5

Outcome Breakdown

Recovered/Normal
52 (40.3%)
Outcome Unknown
41 (31.8%)
Ongoing
29 (22.5%)
Euthanized
5 (3.9%)
Recovered with Sequela
2 (1.6%)

Gender Distribution

Male 71 (55.0%)
Female 57 (44.2%)
Unknown 1 (0.8%)

Reports by Year

Year Reports Trend
2012 6
2013 10
2014 25
2015 10
2016 10
2017 11
2018 11
2019 7
2020 7
2021 10
2022 3
2023 6
2024 5
2025 5
2026 3

Terrier - Toy Fox: low death-coded share in the FDA CVM extract

Signature read: Terrier - Toy Fox's 3.9% death-coded share is in the lower third of the ≥50-report cohort (median 4.8%). According to FDA CVM filings indexed on PlainBreed as of July 2026 extract, Terrier - Toy Fox sits at #220 of 510 by report volume among all breeds and #164 of 298 among dog breeds, with 129 reports and 5 (3.9%) death-coded. On death-coded share among breeds with ≥50 reports, it ranks #184 of 275. Mean age at report: 6.3 years, average weight 5.5 kg (12.1 lbs).

Top reported signs: Vomiting (38), Lethargy (see also Central nervous system depression in 'Neurological') (19), Lack of efficacy (ectoparasite) - flea (15). Most-referenced drug: Milbemycin Oxime + Spinosad (55 reports), followed by Pyrantel Pamoate;Sarolaner (12) and Spinosad (11).

Outcome coding on 129 status-recorded reports is dominated by Recovered/Normal (40.3%). Annual submissions ranged 3-2,026 across 15 years on file.

Dog Breeds With a Similar Report Volume

Showing 6 of 297 dog breeds in our dataset, ranked by closest report volume.

Hound - Afghan
129 reports · 8.5% death-coded
Leonberger
126 reports · 5.6% death-coded
Elkhound - Norwegian Black
123 reports · 1.6% death-coded
Shepherd Dog - Belgian Tervueren
122 reports · 6.6% death-coded
Terrier - Norfolk
145 reports · 2.8% death-coded
Dogue de Bordeaux
146 reports · 6.2% death-coded

Nationwide breeds with similar profiles

Two openFDA-derived peer sets for Terrier - Toy Fox, both outside the Dog family so the neighborhoods are not species containment (the similar-volume list above stays within species).

Similar death-coded share

Nearest other-species breeds with ≥50 reports (3.9% death-coded here).

British cat 3.8% · Cat Siberian 4.2% · Cat American Curl Shorthair 3.5% · Cat Bengal 4.6% · Cat

Similar average weight

Nearest other-species breeds by reported average weight (5.5 kg here).

Bombay 5.5 kg · Cat Japanese Bobtail 5.5 kg · Cat Chartreuse 5.5 kg · Cat Turkey (unknown) 5.7 kg · Turkey

What to do with this dog

A report does not prove a drug caused the reaction, and popular breeds simply generate more reports.

Frequently Asked Questions

How many FDA adverse event reports involve Terrier - Toy Fox? ▼
There are 129 adverse event reports involving Terrier - Toy Fox in the FDA database, of which 5 were death-coded (3.9% of those reports). That is a share of REPORTED events, not a mortality rate for the breed: adverse events reach the FDA when something goes wrong, so the denominator is reports, never the population of animals. According to the same FDA CVM extract, Terrier - Toy Fox ranks #220 of 510 by report volume among all breeds PlainBreed indexes (#164 of 298 among dog breeds).
Where does Terrier - Toy Fox sit among other breeds in PlainBreed's corpus? ▼
According to FDA CVM report volume, Terrier - Toy Fox is #220 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Dog, it is #164 of 298. Among breeds with at least 50 reports, its death-coded share ranks #184 of 275 (same cohort as highest-death-rate). These are placement ranks in the reporting corpus, not clinical risk scores.
What are the most common adverse reactions reported for Terrier - Toy Fox? ▼
The most commonly reported adverse reactions for Terrier - Toy Fox are Vomiting (38 reports), Lethargy (see also Central nervous system depression in 'Neurological') (19 reports), Lack of efficacy (ectoparasite) - flea (15 reports), Emesis (14 reports), Diarrhoea (14 reports).
What drugs are most frequently associated with Terrier - Toy Fox adverse events? ▼
The drugs most frequently referenced in Terrier - Toy Fox adverse event reports are Milbemycin Oxime + Spinosad (55 reports), Pyrantel Pamoate;Sarolaner (12 reports), Spinosad (11 reports), Selamectin (9 reports), Milbemycin Oxime + Praziquantel (8 reports).
What is the average age of Terrier - Toy Fox in adverse event reports? ▼
The average age of Terrier - Toy Fox at the time of adverse event reports is 6.3 years, with an average weight of 5.5 kg (12.1 lbs).

Compare a breed's report volume against how common the breed is before drawing conclusions. See our methodology for how the death-coded share and rankings are computed, or read breed-specific reporting patterns and FDA CVM reporting.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Terrier - Toy Fox (Dog), extract as of July 2026 extract. 129 reports · 5 death-coded (3.9% of reports, not a mortality rate) · #220 of 510 by volume.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →