Tremors after Praziquantel in cats

25 reports to the FDA describe tremors in cats given Praziquantel. That is 1.5% of all reports for this medicine, compared with 2.6% across reports for all cat medicines, so it is reported less often than average with this medicine.

25Reports

60%Marked serious

32%Recovered

16%Died or euthanised

Same dayTypical onset

How soon it started

Same day

12 55%

1–2 days

4 18%

3–7 days

0 0.0%

1–4 weeks

5 23%

Over a month

1 4.5%

How the animals did

Recovered

8 32%

Still unwell when reported

6 24%

Died

2 8.0%

Euthanised

2 8.0%

Not known

7 28%

Problems reported at the same time

9 36%

8 32%

6 24%

6 24%

5 20%

5 20%

4 16%

4 16%

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 tremors in cats?: 25 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).

Tremors with similar medicines

Tremors after Emodepside + Praziquantel (Profender) 348 reports · 6.1% of its reports
Tremors after Praziquantel + Pyrantel 44 reports · 3.5% of its reports
Tremors after Pyrantel 38 reports · 6.8% of its reports

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