Loss of appetite after Praziquantel in cats

215 reports to the FDA describe loss of appetite in cats given Praziquantel. That is 13% of all reports for this medicine, compared with 14% across reports for all cat medicines.

215Reports
33%Marked serious
13%Recovered
12%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
69 38%
1–2 days
69 38%
3–7 days
14 7.8%
1–4 weeks
20 11%
Over a month
8 4.4%

How the animals did

Recovered
27 13%
Still unwell when reported
44 20%
Died
17 7.9%
Euthanised
9 4.2%
Not known
118 55%

Problems reported at the same time

107 50%
64 30%
26 12%
25 12%
23 11%
18 8.4%

Age of the animals

Under 1 year
48
1–3 years
61
4–7 years
41
8–11 years
30
12+ years
20

About this medicine

Praziquantel treats tapeworms.

Questions owners ask

Can Praziquantel cause loss of appetite in cats?
215 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).

Loss of appetite with similar medicines

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