Not drinking after Febantel + Praziquantel + Pyrantel (Drontal Plus) in dogs

The FDA has received 38 reports of not drinking in dogs after Febantel + Praziquantel + Pyrantel. That is 0.6% of all reports for this medicine, compared with 0.5% across reports for all dog medicines.

38Reports
42%Marked serious
29%Recovered
13%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
15 39%
1–2 days
7 18%
3–7 days
3 7.9%
1–4 weeks
5 13%
Over a month
8 21%

How the animals did

Recovered
9 24%
Recovered with lasting effects
2 5.3%
Still unwell when reported
7 18%
Died
4 11%
Euthanised
1 2.6%
Not known
15 39%

Problems reported at the same time

Age of the animals

Under 1 year
29
1–3 years
4
4–7 years
4
8–11 years
0
12+ years
1

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 not drinking 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 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).

Not drinking with similar medicines

All reported side effects of Febantel + Praziquantel + Pyrantel in dogs · Medicines most reported with not drinking