Vocalising after Praziquantel in cats

The FDA has received 59 reports of vocalising in cats after Praziquantel. That is 3.6% of all reports for this medicine, compared with 3.1% across reports for all cat medicines.

59Reports

44%Marked serious

25%Recovered

15%Died or euthanised

1 daysTypical onset

How soon it started

Same day

19 37%

1–2 days

16 31%

3–7 days

7 13%

1–4 weeks

8 15%

Over a month

2 3.8%

How the animals did

Recovered

15 25%

Still unwell when reported

9 15%

Died

8 14%

Euthanised

1 1.7%

Not known

26 44%

Problems reported at the same time

19 32%

14 24%

14 24%

12 20%

10 17%

9 15%

Restlessness or agitation

9 15%

Diarrhea

8 14%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Praziquantel treats tapeworms.

Questions owners ask

Can Praziquantel cause vocalising in cats?: 59 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).

Vocalising with similar medicines

Vocalising after Emodepside + Praziquantel (Profender) 130 reports · 2.3% of its reports
Vocalising after Praziquantel + Pyrantel 35 reports · 2.8% of its reports
Vocalising after Pyrantel 25 reports · 4.5% of its reports

All reported side effects of Praziquantel in cats · Medicines most reported with vocalising