Loss of appetite after Febantel + Praziquantel + Pyrantel (Drontal Plus) in dogs

577 reports to the FDA describe loss of appetite in dogs given Febantel + Praziquantel + Pyrantel. That is 8.6% of all reports for this medicine, compared with 8.4% across reports for all dog medicines.

577Reports
46%Marked serious
26%Recovered
9.4%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
194 41%
1–2 days
157 33%
3–7 days
42 8.8%
1–4 weeks
47 9.8%
Over a month
38 7.9%

How the animals did

Recovered
144 25%
Recovered with lasting effects
7 1.2%
Still unwell when reported
80 14%
Died
37 6.4%
Euthanised
17 2.9%
Not known
292 51%

Problems reported at the same time

Age of the animals

Under 1 year
250
1–3 years
106
4–7 years
87
8–11 years
71
12+ years
50

About this medicine

Febantel treats intestinal worms. Praziquantel treats tapeworms. Pyrantel treats roundworms and hookworms.

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

Questions owners ask

Can Febantel + Praziquantel + Pyrantel cause loss of appetite in dogs?
577 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 Febantel + Praziquantel + Pyrantel in dogs · Medicines most reported with loss of appetite