Itching after Praziquantel + Pyrantel in cats

67 reports to the FDA describe itching in cats given Praziquantel + Pyrantel. That is 5.3% of all reports for this medicine, compared with 8.9% across reports for all cat medicines, so it is reported less often than average with this medicine.

67Reports

54%Marked serious

24%Recovered

4.5%Died or euthanised

3 daysTypical onset

How soon it started

Same day

12 25%

1–2 days

12 25%

3–7 days

7 15%

1–4 weeks

7 15%

Over a month

10 21%

How the animals did

Recovered

16 24%

Still unwell when reported

6 9.0%

Died

1 1.5%

Euthanised

2 3.0%

Not known

42 63%

Problems reported at the same time

Hair loss

18 27%

Application site reaction

15 22%

Vomiting

9 13%

Wobbliness (ataxia)

9 13%

Behaviour change

8 12%

Skin redness

7 10%

Lethargy

6 9.0%

Breathing problems

6 9.0%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Praziquantel treats tapeworms. Pyrantel treats roundworms and hookworms.

Questions owners ask

Can Praziquantel + Pyrantel cause itching in cats?: 67 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 3 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).

Itching with similar medicines

Itching after Emodepside + Praziquantel (Profender) 615 reports · 11% of its reports
Itching after Praziquantel 91 reports · 5.5% of its reports
Itching after Pyrantel 26 reports · 4.6% of its reports

All reported side effects of Praziquantel + Pyrantel in cats · Medicines most reported with itching