Overdose after Praziquantel in dogs

58 reports to the FDA describe overdose in dogs given Praziquantel. That is 5.2% of all reports for this medicine, compared with 1.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

58Reports
72%Marked serious
38%Recovered
1.7%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
7 21%
1–2 days
7 21%
3–7 days
4 12%
1–4 weeks
11 33%
Over a month
4 12%

How the animals did

Recovered
22 38%
Still unwell when reported
3 5.2%
Died
1 1.7%
Not known
32 55%

Problems reported at the same time

5 8.6%
Drug dose administration interval too short
5 8.6%
5 8.6%
4 6.9%
Restlessness or agitation
3 5.2%
Incorrect dose administered
3 5.2%

Age of the animals

Under 1 year
36
1–3 years
10
4–7 years
9
8–11 years
0
12+ years
2

About this medicine

Praziquantel treats tapeworms.

Questions owners ask

Can Praziquantel cause overdose in dogs?
58 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 4 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).

Overdose with similar medicines

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