Important: Adverse event reports are voluntarily submitted and do not prove causation. Consult your veterinarian for medical decisions about your sheep.
254
Total Reports
130
Deaths Reported
5120.0%
Death Rate
0.9 yr
Avg Age at Report
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 | |
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Rank #173 by report volume. Data reflects voluntary submissions and may not represent actual incidence rates.