Paddling after Fluralaner (Bravecto) in dogs

The FDA has received 220 reports of paddling in dogs after Fluralaner. That is 0.3% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.

220Reports
100%Marked serious
41%Recovered
12%Died or euthanised
8 daysTypical onset
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How soon it started

Same day
25 23%
1–2 days
16 14%
3–7 days
13 12%
1–4 weeks
25 23%
Over a month
32 29%

How the animals did

Recovered
78 35%
Recovered with lasting effects
12 5.5%
Still unwell when reported
78 35%
Died
8 3.6%
Euthanised
18 8.2%
Not known
26 12%

Problems reported at the same time

Age of the animals

Under 1 year
8
1–3 years
67
4–7 years
63
8–11 years
44
12+ years
38

About this medicine

Fluralaner kills fleas and ticks for up to 12 weeks (chewable or spot-on).

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

In 2018 the FDA alerted owners and vets that isoxazoline products have been associated with neurologic reactions such as muscle tremors, wobbliness (ataxia) and seizures, including in animals with no history of them.

Questions owners ask

Can Fluralaner cause paddling in dogs?
220 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 8 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).

Paddling with similar medicines

All reported side effects of Fluralaner in dogs · Medicines most reported with paddling