Unable to stand after Fluralaner (Bravecto) in dogs

307 reports to the FDA describe unable to stand in dogs given Fluralaner. That is 0.4% of all reports for this medicine, compared with 0.3% across reports for all dog medicines.

307Reports
90%Marked serious
26%Recovered
25%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
45 27%
1–2 days
55 33%
3–7 days
14 8.5%
1–4 weeks
17 10%
Over a month
34 21%

How the animals did

Recovered
75 24%
Recovered with lasting effects
6 2.0%
Still unwell when reported
111 36%
Died
31 10%
Euthanised
46 15%
Not known
38 12%

Problems reported at the same time

Age of the animals

Under 1 year
24
1–3 years
58
4–7 years
71
8–11 years
77
12+ years
72

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 unable to stand in dogs?
307 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).

Unable to stand with similar medicines

All reported side effects of Fluralaner in dogs · Medicines most reported with unable to stand