Total Reports
8
FDA CVM filings
Sheep /
FDA CVM · 2025 release 8 reports on file
Katahdin - FDA Adverse Event Profile
Adverse-event records for Katahdin (Sheep) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Katahdin ranks #447 by report volume among sheep breeds - 3 of 8 reports (37.5%) recorded a death outcome.
- #447
- most-reported sheep breed
- 37.5%
- death-coded report share
- 3
- Lack of efficacy (endoparasite) - tapeworm - top reaction
- 0.8 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
3
of 8 reports
Death Rate
37.5%
death-coded share
Avg Age at Report
0.8 yr
32.4 kg avg weight
Death-Coded Outcome Share
Katahdin death-coded reports 37.5%
Cross-breed median
37.5% of 8 katahdin 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: 32.4 kg (71.4 lbs)
Top Reported Reactions
Lack of efficacy (endoparasite) - tapeworm 3
INEFFECTIVE, STOMACH WORM NOS 2
Death 2
INEFFECTIVE, STRONGYLES 1
No sign 1
Most Referenced Drugs
Albendazole 7
Ivermectin 2
Outcome Breakdown
Outcome Unknown
7 (70.0%)
Died
3 (30.0%)
Gender Distribution
Female 3 (37.5%)
Mixed 3 (37.5%)
Male 1 (12.5%)
Unknown 1 (12.5%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2011 | 1 | |
| 2013 | 3 | |
| 2014 | 1 | |
| 2015 | 2 | |
| 2023 | 1 | |
Katahdin Pet Health Insights
Katahdin accounts for 8 FDA adverse event reports, ranking #447 by volume among sheep breeds, with 3 reports (37.5%) coded as a death outcome. Mean age at report: 0.8 years, average weight 32.4 kg (71.4 lbs).
Top reported signs: Lack of efficacy (endoparasite) - tapeworm (3), INEFFECTIVE, STOMACH WORM NOS (2), Death (2). Most-referenced drug: Albendazole (7 reports), followed by Ivermectin (2).
Outcome coding on 10 status-recorded reports is dominated by Outcome Unknown (70.0%). Annual submissions ranged 2,011-2,023 across 5 years on file.
Sheep Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Katahdin? ▼
There are 8 adverse event reports involving Katahdin in the FDA database, with 3 reports involving death (37.5% death rate). Katahdin ranks #447 by report volume.
What are the most common adverse reactions reported for Katahdin? ▼
The most commonly reported adverse reactions for Katahdin are Lack of efficacy (endoparasite) - tapeworm (3 reports), INEFFECTIVE, STOMACH WORM NOS (2 reports), Death (2 reports), INEFFECTIVE, STRONGYLES (1 reports), No sign (1 reports).
What drugs are most frequently associated with Katahdin adverse events? ▼
The drugs most frequently referenced in Katahdin adverse event reports are Albendazole (7 reports), Ivermectin (2 reports).
What is the average age of Katahdin in adverse event reports? ▼
The average age of Katahdin at the time of adverse event reports is 0.8 years, with an average weight of 32.4 kg (71.4 lbs).
Does a high number of adverse event reports mean Katahdin 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 Katahdin 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.