Weakness after Emodepside + Praziquantel (Profender) in cats

The FDA has received 80 reports of weakness in cats after Emodepside + Praziquantel. That is 1.4% of all reports for this medicine, compared with 1.2% across reports for all cat medicines.

80Reports
74%Marked serious
40%Recovered
14%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
27 38%
1–2 days
23 32%
3–7 days
11 15%
1–4 weeks
9 13%
Over a month
1 1.4%

How the animals did

Recovered
32 40%
Still unwell when reported
7 8.8%
Died
3 3.8%
Euthanised
8 10%
Not known
30 38%

Problems reported at the same time

Age of the animals

Under 1 year
11
1–3 years
24
4–7 years
17
8–11 years
8
12+ years
17

About this medicine

Emodepside treats intestinal worms (spot-on for cats). Praziquantel treats tapeworms.

Products with this combination include Profender. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Emodepside + Praziquantel cause weakness in cats?
80 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).

Weakness with similar medicines

All reported side effects of Emodepside + Praziquantel in cats · Medicines most reported with weakness