Lateral recumbency after Pyrantel in dogs

24 reports to the FDA describe lateral recumbency in dogs given Pyrantel. That is 0.5% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

24Reports

88%Marked serious

8.3%Recovered

42%Died or euthanised

1 daysTypical onset

How soon it started

Same day

10 42%

1–2 days

4 17%

3–7 days

3 13%

1–4 weeks

4 17%

Over a month

3 13%

How the animals did

Recovered

2 8.3%

Still unwell when reported

8 33%

Died

2 8.3%

Euthanised

8 33%

Not known

4 17%

Problems reported at the same time

13 54%

13 54%

10 42%

10 42%

9 38%

5 21%

5 21%

5 21%

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 lateral recumbency in dogs?: 24 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).

Lateral recumbency with similar medicines

Lateral recumbency after Pyrantel + Sarolaner (Simparica Trio) 93 reports · 0.2% of its reports

All reported side effects of Pyrantel in dogs · Medicines most reported with lateral recumbency