Total Reports
83
FDA CVM filings
Cat /
FDA CVM · 2025 release 83 reports on file
Rex - Devon - FDA Adverse Event Profile
Adverse-event records for Rex - Devon (Cat) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
With 83 reports on file, Rex - Devon sits at #243 among cat breeds by volume; death-coded share is 13.3% (11 reports).
- #243
- most-reported cat breed
- 13.3%
- death-coded report share
- 14
- Vomiting - top reaction
- 7.4 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
11
of 83 reports
Death Rate
13.3%
death-coded share
Avg Age at Report
7.4 yr
3.9 kg avg weight
Death-Coded Outcome Share
Rex - Devon death-coded reports 13.3%
Cross-breed median
13.3% of 83 rex - devon 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: 3.9 kg (8.6 lbs)
Top Reported Reactions
Vomiting 14
Lethargy (see also Central nervous system depression in 'Neurological') 10
Death 7
Diarrhoea 7
Application site alopecia 6
Most Referenced Drugs
Frunevetmab 12
Imidacloprid + Moxidectin 9
Cefovecin 9
Maropitant Citrate 8
Emodepside + Praziquantel 6
Outcome Breakdown
Ongoing
29 (34.9%)
Outcome Unknown
25 (30.1%)
Recovered/Normal
18 (21.7%)
Died
7 (8.4%)
Euthanized
4 (4.8%)
Gender Distribution
Female 42 (50.6%)
Male 39 (47.0%)
Unknown 2 (2.4%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2011 | 3 | |
| 2012 | 3 | |
| 2013 | 5 | |
| 2014 | 5 | |
| 2015 | 5 | |
| 2016 | 5 | |
| 2017 | 5 | |
| 2018 | 4 | |
| 2019 | 6 | |
| 2020 | 5 | |
| 2021 | 3 | |
| 2022 | 7 | |
| 2023 | 12 | |
| 2024 | 8 | |
| 2025 | 7 | |
Rex - Devon Pet Health Insights
Rex - Devon accounts for 83 FDA adverse event reports, ranking #243 by volume among cat breeds, with 11 reports (13.3%) coded as a death outcome. Mean age at report: 7.4 years, average weight 3.9 kg (8.6 lbs).
Top reported signs: Vomiting (14), Lethargy (see also Central nervous system depression in 'Neurological') (10), Death (7). Most-referenced drug: Frunevetmab (12 reports), followed by Imidacloprid + Moxidectin (9) and Cefovecin (9).
Outcome coding on 83 status-recorded reports is dominated by Ongoing (34.9%). Annual submissions ranged 2,011-2,025 across 15 years on file.
Cat Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Rex - Devon? ▼
There are 83 adverse event reports involving Rex - Devon in the FDA database, with 11 reports involving death (13.3% death rate). Rex - Devon ranks #243 by report volume.
What are the most common adverse reactions reported for Rex - Devon? ▼
The most commonly reported adverse reactions for Rex - Devon are Vomiting (14 reports), Lethargy (see also Central nervous system depression in 'Neurological') (10 reports), Death (7 reports), Diarrhoea (7 reports), Application site alopecia (6 reports).
What drugs are most frequently associated with Rex - Devon adverse events? ▼
The drugs most frequently referenced in Rex - Devon adverse event reports are Frunevetmab (12 reports), Imidacloprid + Moxidectin (9 reports), Cefovecin (9 reports), Maropitant Citrate (8 reports), Emodepside + Praziquantel (6 reports).
What is the average age of Rex - Devon in adverse event reports? ▼
The average age of Rex - Devon at the time of adverse event reports is 7.4 years, with an average weight of 3.9 kg (8.6 lbs).
Does a high number of adverse event reports mean Rex - Devon 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 Rex - Devon 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.