Vomiting after Pyrantel in cats

The FDA has received 113 reports of vomiting in cats after Pyrantel. That is 20% of all reports for this medicine, compared with 18% across reports for all cat medicines.

113Reports

35%Marked serious

29%Recovered

16%Died or euthanised

1 daysTypical onset

How soon it started

Same day

27 36%

1–2 days

16 21%

3–7 days

9 12%

1–4 weeks

13 17%

Over a month

11 14%

How the animals did

Recovered

32 28%

Recovered with lasting effects

1 0.9%

Still unwell when reported

18 16%

Died

15 13%

Euthanised

3 2.7%

Not known

44 39%

Problems reported at the same time

49 43%

38 34%

29 26%

18 16%

16 14%

13 12%

11 9.7%

11 9.7%

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 vomiting in cats?: 113 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).

Vomiting with similar medicines

Vomiting after Emodepside + Praziquantel (Profender) 801 reports · 14% of its reports
Vomiting after Praziquantel 413 reports · 25% of its reports
Vomiting after Praziquantel + Pyrantel 408 reports · 32% of its reports
Vomiting after Fenbendazole 69 reports · 24% of its reports
Vomiting after Febantel + Praziquantel + Pyrantel (Drontal Plus) 30 reports · 43% of its reports

All reported side effects of Pyrantel in cats · Medicines most reported with vomiting