Cough after Fluralaner (Bravecto) in dogs

The FDA has received 353 reports of cough in dogs after Fluralaner. That is 0.5% of all reports for this medicine, compared with 0.8% across reports for all dog medicines, so it is reported less often than average with this medicine.

353Reports
76%Marked serious
22%Recovered
18%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
56 28%
1–2 days
46 23%
3–7 days
19 9.4%
1–4 weeks
24 12%
Over a month
57 28%

How the animals did

Recovered
60 17%
Recovered with lasting effects
17 4.8%
Still unwell when reported
160 45%
Died
26 7.4%
Euthanised
39 11%
Not known
51 14%

Problems reported at the same time

Age of the animals

Under 1 year
20
1–3 years
90
4–7 years
90
8–11 years
98
12+ years
48

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 cough in dogs?
353 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).

Cough with similar medicines

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