Behaviour change after Fenbendazole in dogs
213 reports to the FDA describe behaviour change in dogs given Fenbendazole. That is 3.6% of all reports for this medicine, compared with 2.5% across reports for all dog medicines.
213Reports
43%Marked serious
29%Recovered
9.4%Died or euthanised
1 daysTypical 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 behaviour change in dogs?
- 213 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 1 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).
Behaviour change with similar medicines
- Behaviour change after Pyrantel + Sarolaner (Simparica Trio) 1,082 reports · 2.0% of its reports
- Behaviour change after Febantel + Praziquantel + Pyrantel (Drontal Plus) 285 reports · 4.2% of its reports
- Behaviour change after Pyrantel 103 reports · 2.2% of its reports
- Behaviour change after Praziquantel + Pyrantel 147 reports · 4.0% of its reports
- Behaviour change after Praziquantel 31 reports · 2.8% of its reports
All reported side effects of Fenbendazole in dogs · Medicines most reported with behaviour change