Total Reports
12
FDA CVM filings
Rat /
FDA CVM · 2025 release 12 reports on file
Rat (unknown) - FDA Adverse Event Profile
Adverse-event records for Rat (unknown) (Rat) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Rat (unknown)'s FDA record: #423 most-reported rat breed, 12 total reports, 50.0% death-coded (6 reports).
- #423
- most-reported rat breed
- 50.0%
- death-coded report share
- 5
- Death - top reaction
- 0.2 yr
- average age at report
Higher volume usually means a more popular breed, not a riskier one, compare against how common the breed is.
Deaths Reported
6
of 12 reports
Death Rate
50.0%
death-coded share
Avg Age at Report
0.2 yr
0.4 kg avg weight
Death-Coded Outcome Share
Rat (unknown) death-coded reports 50.0%
Cross-breed median
50.0% of 12 rat (unknown) 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: 0.4 kg (0.9 lbs)
Top Reported Reactions
Death 5
INEFFECTIVE, ANESTHESIA 3
Product Defect, General 1
Drug administration error 1
Precipitate, Sediment 1
Most Referenced Drugs
Ketamine Hydrochloride 7
Meloxicam 2
Buprenorphine 2
Ketamine 1
Xylazine Hcl 1
Outcome Breakdown
Died
5 (38.5%)
Outcome Unknown
4 (30.8%)
Recovered/Normal
3 (23.1%)
Euthanized
1 (7.7%)
Gender Distribution
Unknown 7 (58.3%)
Mixed 2 (16.7%)
Male 2 (16.7%)
Female 1 (8.3%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2018 | 3 | |
| 2019 | 3 | |
| 2020 | 3 | |
| 2023 | 1 | |
| 2024 | 1 | |
| 2025 | 1 | |
Rat (unknown) Pet Health Insights
Rat (unknown) accounts for 12 FDA adverse event reports, ranking #423 by volume among rat breeds, with 6 reports (50.0%) coded as a death outcome. Mean age at report: 0.2 years, average weight 0.4 kg (0.9 lbs).
Top reported signs: Death (5), INEFFECTIVE, ANESTHESIA (3), Product Defect, General (1). Most-referenced drug: Ketamine Hydrochloride (7 reports), followed by Meloxicam (2) and Buprenorphine (2).
Outcome coding on 13 status-recorded reports is dominated by Died (38.5%). Annual submissions ranged 2,018-2,025 across 6 years on file.
Frequently Asked Questions
How many FDA adverse event reports involve Rat (unknown)? ▼
There are 12 adverse event reports involving Rat (unknown) in the FDA database, with 6 reports involving death (50.0% death rate). Rat (unknown) ranks #423 by report volume.
What are the most common adverse reactions reported for Rat (unknown)? ▼
The most commonly reported adverse reactions for Rat (unknown) are Death (5 reports), INEFFECTIVE, ANESTHESIA (3 reports), Product Defect, General (1 reports), Drug administration error (1 reports), Precipitate, Sediment (1 reports).
What drugs are most frequently associated with Rat (unknown) adverse events? ▼
The drugs most frequently referenced in Rat (unknown) adverse event reports are Ketamine Hydrochloride (7 reports), Meloxicam (2 reports), Buprenorphine (2 reports), Ketamine (1 reports), Xylazine Hcl (1 reports).
What is the average age of Rat (unknown) in adverse event reports? ▼
The average age of Rat (unknown) at the time of adverse event reports is 0.2 years, with an average weight of 0.4 kg (0.9 lbs).
Does a high number of adverse event reports mean Rat (unknown) 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 Rat (unknown) 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.