Pica after Fenbendazole in dogs

The FDA has received 23 reports of pica in dogs after Fenbendazole. That is 0.4% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

23Reports

39%Marked serious

8.7%Recovered

4.3%Died or euthanised

46 daysTypical onset

How soon it started

Same day

2 12%

1–2 days

3 18%

3–7 days

0 0.0%

1–4 weeks

1 5.9%

Over a month

11 65%

How the animals did

Recovered

2 8.7%

Still unwell when reported

8 35%

Euthanised

1 4.3%

Not known

12 52%

Problems reported at the same time

10 43%

10 43%

8 35%

8 35%

8 35%

Didn't work as expected

6 26%

Cough

4 17%

Loose stool

4 17%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Fenbendazole treats intestinal worms and some other parasites.

Questions owners ask

Can Fenbendazole cause pica in dogs?: 23 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 46 days 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).

Pica with similar medicines

Pica after Pyrantel + Sarolaner (Simparica Trio) 71 reports · 0.1% of its reports
Pica after Febantel + Praziquantel + Pyrantel (Drontal Plus) 20 reports · 0.3% of its reports

All reported side effects of Fenbendazole in dogs · Medicines most reported with pica