Pale mucous membrane after Pyrantel in dogs

The FDA has received 140 reports of pale mucous membrane in dogs after Pyrantel. That is 2.9% of all reports for this medicine, compared with 0.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

140Reports

57%Marked serious

24%Recovered

30%Died or euthanised

Same dayTypical onset

How soon it started

Same day

68 71%

1–2 days

5 5.2%

3–7 days

5 5.2%

1–4 weeks

7 7.3%

Over a month

11 11%

How the animals did

Recovered

33 24%

Still unwell when reported

35 25%

Died

35 25%

Euthanised

7 5.0%

Not known

30 21%

Problems reported at the same time

78 56%

68 49%

63 45%

42 30%

30 21%

27 19%

23 16%

22 16%

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 pale mucous membrane in dogs?: 140 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).

Pale mucous membrane with similar medicines

Pale mucous membrane after Pyrantel + Sarolaner (Simparica Trio) 119 reports · 0.2% of its reports
Pale mucous membrane after Febantel + Praziquantel + Pyrantel (Drontal Plus) 35 reports · 0.5% of its reports
Pale mucous membrane after Fenbendazole 62 reports · 1.1% of its reports
Pale mucous membrane after Praziquantel + Pyrantel 35 reports · 0.9% of its reports

All reported side effects of Pyrantel in dogs · Medicines most reported with pale mucous membrane