Restlessness or agitation after Fenbendazole in dogs
The FDA has received 253 reports of restlessness or agitation in dogs after Fenbendazole. That is 4.3% of all reports for this medicine, compared with 1.6% across reports for all dog medicines, so it is reported unusually often with this medicine.
253Reports
23%Marked serious
32%Recovered
1.6%Died or euthanised
Same dayTypical onset
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How soon it started
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Fenbendazole treats intestinal worms and some other parasites.
Questions owners ask
- Can Fenbendazole cause restlessness or agitation in dogs?
- 253 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
- How soon after a dose was it reported?
- In half of the reports with dates, it started within the same day of the first dose.
- What should I do?
- Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).
Restlessness or agitation with similar medicines
- Restlessness or agitation after Pyrantel + Sarolaner (Simparica Trio) 456 reports · 0.9% of its reports
- Restlessness or agitation after Febantel + Praziquantel + Pyrantel (Drontal Plus) 443 reports · 6.6% of its reports
- Restlessness or agitation after Pyrantel 60 reports · 1.3% of its reports
- Restlessness or agitation after Praziquantel + Pyrantel 76 reports · 2.1% of its reports
All reported side effects of Fenbendazole in dogs · Medicines most reported with restlessness or agitation