Fenbendazole side effects in horses
169 reports sent to the FDA between 1995 and 2026 involve Fenbendazole in horses. The most reported problems were abdominal pain, loss of appetite, diarrhea. 27% were marked serious.
169Reports
27%Marked serious
98%Only medicine involved
15%Recovered
17%Died or euthanised
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About this medicine
Fenbendazole treats intestinal worms and some other parasites.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a horse still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (47 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Quarter Horse 50 reports
- Horse 27 reports
- Thoroughbred 18 reports
- Horse (other) 9 reports
- Paint 8 reports
- Arab 6 reports
- Tennessee Walking Horse 4 reports
- Morgan 4 reports
- Pony 3 reports
- Haflinger 2 reports