Itching after Praziquantel in dogs

38 reports to the FDA describe itching in dogs given Praziquantel. That is 3.4% of all reports for this medicine, compared with 4.3% across reports for all dog medicines.

38Reports

58%Marked serious

24%Recovered

11%Died or euthanised

2 daysTypical onset

How soon it started

Same day

8 32%

1–2 days

7 28%

3–7 days

3 12%

1–4 weeks

7 28%

Over a month

0 0.0%

How the animals did

Recovered

8 21%

Recovered with lasting effects

1 2.6%

Still unwell when reported

3 7.9%

Died

2 5.3%

Euthanised

2 5.3%

Not known

22 58%

Problems reported at the same time

Swelling

8 21%

Vomiting

8 21%

Skin redness

7 18%

Hair loss

5 13%

Lethargy

5 13%

Didn't stop worms

5 13%

Death

4 11%

Injection site reaction

4 11%

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 itching in dogs?: 38 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 2 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 Pyrantel + Sarolaner (Simparica Trio) 1,535 reports · 2.9% of its reports
Itching after Febantel + Praziquantel + Pyrantel (Drontal Plus) 157 reports · 2.3% of its reports
Itching after Fenbendazole 125 reports · 2.1% of its reports
Itching after Pyrantel 157 reports · 3.3% of its reports
Itching after Praziquantel + Pyrantel 81 reports · 2.2% of its reports

All reported side effects of Praziquantel in dogs · Medicines most reported with itching