Recumbency after Fluralaner (Bravecto) in dogs

The FDA has received 141 reports of recumbency in dogs after Fluralaner. That is 0.2% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported less often than average with this medicine.

141Reports
99%Marked serious
35%Recovered
30%Died or euthanised
3 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
29 30%
1–2 days
19 20%
3–7 days
16 17%
1–4 weeks
11 11%
Over a month
21 22%

How the animals did

Recovered
40 28%
Recovered with lasting effects
9 6.4%
Still unwell when reported
35 25%
Died
20 14%
Euthanised
22 16%
Not known
15 11%

Problems reported at the same time

Age of the animals

Under 1 year
6
1–3 years
30
4–7 years
36
8–11 years
42
12+ years
27

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 recumbency in dogs?
141 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 3 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).

Recumbency with similar medicines

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