Drooling after Fipronil in dogs

24 reports to the FDA describe drooling in dogs given Fipronil. That is 1.7% of all reports for this medicine, compared with 1.4% across reports for all dog medicines.

24Reports
46%Marked serious
58%Recovered
8.3%Died or euthanised
22 daysTypical onset
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How soon it started

Same day
2 11%
1–2 days
0 0.0%
3–7 days
1 5.3%
1–4 weeks
10 53%
Over a month
6 32%

How the animals did

Recovered
12 50%
Recovered with lasting effects
2 8.3%
Still unwell when reported
5 21%
Died
1 4.2%
Euthanised
1 4.2%
Not known
3 13%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
8
4–7 years
7
8–11 years
3
12+ years
2

About this medicine

Fipronil kills fleas and ticks (spot-on).

Questions owners ask

Can Fipronil cause drooling in dogs?
24 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 22 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).

Drooling with similar medicines

All reported side effects of Fipronil in dogs · Medicines most reported with drooling