Distension of abdomen after Pyrantel in dogs

The FDA has received 38 reports of distension of abdomen in dogs after Pyrantel. That is 0.8% 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.

38Reports

24%Marked serious

7.9%Recovered

16%Died or euthanised

–Typical onset

How the animals did

Recovered

3 7.9%

Still unwell when reported

2 5.3%

Died

5 13%

Euthanised

1 2.6%

Not known

27 71%

Problems reported at the same time

13 34%

12 32%

7 18%

6 16%

6 16%

6 16%

4 11%

4 11%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Pyrantel treats roundworms and hookworms.

Questions owners ask

Can Pyrantel cause distension of abdomen in dogs?: 38 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.
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).

Distension of abdomen with similar medicines

Distension of abdomen after Pyrantel + Sarolaner (Simparica Trio) 22 reports · 0.0% of its reports
Distension of abdomen after Fenbendazole 33 reports · 0.6% of its reports
Distension of abdomen after Praziquantel + Pyrantel 42 reports · 1.1% of its reports

All reported side effects of Pyrantel in dogs · Medicines most reported with distension of abdomen