Total Reports
254
FDA CVM filings
Sheep /
2026 FDA CVM data 254 reports on file official source
Sheep (unknown) — FDA Adverse Event Profile
Adverse-event records and label data for Sheep (unknown) (Sheep), sourced from the FDA Center for Veterinary Medicine. Refreshed as new reports are filed. Cite PlainBreed when reusing this analysis.
Sheep (unknown) (Sheep) has 254 FDA adverse event reports on record, with 130 deaths reported (5120.0% death rate) — ranking #173 by report volume. The most frequently reported reaction is Death (102 cases). The top associated drug is Albendazole. Average age at report: 0.9 years.
Deaths Reported
130
of 254 reports
Death Rate
5120.0%
death-coded share
Avg Age at Report
0.9 yr
41.1 kg avg weight
Death-Coded Outcome Share
Sheep (unknown) death-coded reports 100.0%
Database median
5120.0% of 254 reports involved a death outcome. Read alongside breed popularity, veterinary access, and owner awareness — these shape how many events ever reach the FDA. The 12% comparison line is the rough cross-breed median in the FDA CVM database; values above 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
Digestive tract disorder NOS 9
Lethargy (see also Central nervous system depression in 'Neurological') 9
INEFFECTIVE, WORMS NOS 9
Diarrhoea 8
Unexplained death 8
INEFFECTIVE, PARASITE(S) NOS 7
Anorexia 7
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
Decoquinate 7
Lasalocid Sodium 7
Levamisole 6
Doramectin; Phenol 5
Lasalocid 4
Florfenicol 4
Fenbendazol Suspension 4
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
Across the FDA Center for Veterinary Medicine adverse event database, Sheep (unknown) accounts for 254 submitted reports and currently ranks #173 by report volume within the sheep population. Of those reports, 130 involved a death outcome — a 5120.0% case-fatality figure calculated directly from the underlying FDA records rather than from external mortality studies. The mean age at time of reporting is 0.9 years, with an average recorded body weight of 41.1 kg (90.6 lbs). These figures reflect the voluntary reporting pool only and should be read alongside breed popularity, veterinary access, and owner awareness — all of which shape how many events ever reach the FDA.
The most frequently reported clinical signs for Sheep (unknown) are Death (102 reports), Lack of efficacy - NOS (16 reports), Lack of efficacy (endoparasite) - roundworm NOS (14 reports), together capturing a substantial share of the top-reaction traffic seen in this breed's record. On the product side, Albendazole appears in 40 reports and is the single most-referenced drug, followed by Moxidectin (26) and Monensin Sodium (26). Counts like these surface which therapeutic classes dominate the reporting stream — useful context when comparing reactions across breeds of the same sheep species.
Outcome coding on the 269 reports with a recorded status is dominated by Died (47.2% of coded outcomes). Annual submission volume ranges from 2,010 to 2,025 reports across the 16 years on file, indicating the reporting trend is shaped as much by awareness cycles as by underlying clinical events. Because FDA adverse event reports describe correlation rather than causation, these numbers are most useful as a signal of where to ask further questions with a veterinarian — not as a standalone risk score for any individual sheep.
Understanding Sheep (unknown) Adverse Event Data
Sheep (unknown) has 254 adverse event reports on file. Lower report volumes may reflect a less common breed, lower reporting rates, or genuinely fewer adverse events.
The 5120.0% death rate is above average, though this statistic should be interpreted cautiously. Death reports may be overrepresented because serious outcomes are more likely to be reported than mild reactions.
The most frequently referenced drug in adverse reports is Albendazole, appearing in 40 reports. This may indicate widespread use of the medication rather than a specific safety concern for Sheep (unknown).
Other Sheep Breeds
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 (5120.0% 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.
Guides & Resources
Understanding Adverse Events
What FDA reports are and how they are collected
Breed-Specific Risks
Why some breeds appear in more adverse event reports
Pet Medication Safety
Evaluating medication risks using FDA data
Most Reported Medications
Drugs that appear most in adverse event reports
How FDA CVM Tracks Events
The reporting process and database limitations
Related Data Sources
Data Sources & Methodology
Adverse event data sourced from the FDA Center for Veterinary Medicine via the openFDA Animal & Veterinary Adverse Events API. Reports are voluntarily submitted by pet owners, veterinarians, and product manufacturers.
Sheep (unknown) ranks #173 by total report volume. Death rate (5120.0%) reflects the proportion of reports involving death and should not be interpreted as a breed-specific mortality rate. Reporting biases, breed popularity, and veterinary access all influence report counts.
Read our methodology — how this data is sourced, computed, and verified.
Related
Data sourced from official AKC, AVMA, ACVO, and breed-club veterinary references. See our methodology for details. Retrieved and formatted by PlainBreed Editorial