Nt - abnormal necropsy finding after Fluralaner (Bravecto) in dogs

116 reports to the FDA describe nt - abnormal necropsy finding in dogs given Fluralaner. That is 0.2% 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.

116Reports
100%Marked serious
0.0%Recovered
99%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
26 30%
1–2 days
21 24%
3–7 days
11 13%
1–4 weeks
11 13%
Over a month
19 22%

How the animals did

Still unwell when reported
1 0.9%
Died
68 59%
Euthanised
47 41%

Problems reported at the same time

Age of the animals

Under 1 year
12
1–3 years
24
4–7 years
36
8–11 years
31
12+ years
12

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 nt - abnormal necropsy finding in dogs?
116 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 2 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).

Nt - abnormal necropsy finding with similar medicines

All reported side effects of Fluralaner in dogs · Medicines most reported with nt - abnormal necropsy finding