Total Reports
254
FDA CVM filings
Sheep /
FDA CVM · 2025 release 254 reports on file
Sheep (unknown) - FDA Adverse Event Profile
Adverse-event records for Sheep (unknown) (Sheep) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
With 254 reports on file, Sheep (unknown) sits at #173 among sheep breeds by volume; death-coded share is 51.2% (130 reports).
- #173
- most-reported sheep breed
- 51.2%
- death-coded report share
- 102
- Death - top reaction
- 0.9 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
130
of 254 reports
Death Rate
51.2%
death-coded share
Avg Age at Report
0.9 yr
41.1 kg avg weight
Death-Coded Outcome Share
Sheep (unknown) death-coded reports 51.2%
Cross-breed median
51.2% of 254 sheep (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: 41.1 kg (90.6 lbs)
Top Reported Reactions
Death 102
Lack of efficacy - NOS 16
Lack of efficacy (endoparasite) - roundworm NOS 14
Recumbency 12
No sign 11
Ataxia 10
Lack of efficacy (protozoa) - Coccidia 9
Overdose 9
Most Referenced Drugs
Albendazole 40
Moxidectin 26
Monensin Sodium 26
Ivermectin 20
Tulathromycin 13
Ivermectin 0.08% Oral Liquid 12
Ivermectin 10 Mg/Ml Solution For Injection 11
Progesterone 10
Outcome Breakdown
Died
127 (47.2%)
Outcome Unknown
99 (36.8%)
Recovered/Normal
22 (8.2%)
Ongoing
12 (4.5%)
Euthanized
6 (2.2%)
Recovered with Sequela
3 (1.1%)
Gender Distribution
Unknown 94 (37.0%)
Female 77 (30.3%)
Mixed 58 (22.8%)
Male 25 (9.8%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 22 | |
| 2011 | 14 | |
| 2012 | 17 | |
| 2013 | 19 | |
| 2014 | 24 | |
| 2015 | 25 | |
| 2016 | 31 | |
| 2017 | 16 | |
| 2018 | 17 | |
| 2019 | 18 | |
| 2020 | 8 | |
| 2021 | 10 | |
| 2022 | 10 | |
| 2023 | 14 | |
| 2024 | 7 | |
| 2025 | 2 | |
Sheep (unknown) Pet Health Insights
Sheep (unknown) accounts for 254 FDA adverse event reports, ranking #173 by volume among sheep breeds, with 130 reports (51.2%) coded as a death outcome. Mean age at report: 0.9 years, average weight 41.1 kg (90.6 lbs).
Top reported signs: Death (102), Lack of efficacy - NOS (16), Lack of efficacy (endoparasite) - roundworm NOS (14). Most-referenced drug: Albendazole (40 reports), followed by Moxidectin (26) and Monensin Sodium (26).
Outcome coding on 269 status-recorded reports is dominated by Died (47.2%). Annual submissions ranged 2,010-2,025 across 16 years on file.
Sheep Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Sheep (unknown)? ▼
There are 254 adverse event reports involving Sheep (unknown) in the FDA database, with 130 reports involving death (51.2% death rate). Sheep (unknown) ranks #173 by report volume.
What are the most common adverse reactions reported for Sheep (unknown)? ▼
The most commonly reported adverse reactions for Sheep (unknown) are Death (102 reports), Lack of efficacy - NOS (16 reports), Lack of efficacy (endoparasite) - roundworm NOS (14 reports), Recumbency (12 reports), No sign (11 reports).
What drugs are most frequently associated with Sheep (unknown) adverse events? ▼
The drugs most frequently referenced in Sheep (unknown) adverse event reports are Albendazole (40 reports), Moxidectin (26 reports), Monensin Sodium (26 reports), Ivermectin (20 reports), Tulathromycin (13 reports).
What is the average age of Sheep (unknown) in adverse event reports? ▼
The average age of Sheep (unknown) at the time of adverse event reports is 0.9 years, with an average weight of 41.1 kg (90.6 lbs).
Does a high number of adverse event reports mean Sheep (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 Sheep (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.