Fluralaner (Bravecto) side effects in dogs
68,765 reports sent to the FDA between 2012 and 2026 involve Fluralaner in dogs. The most reported problems were vomiting, lethargy, diarrhea. 57% were marked serious, and where it was recorded, signs eased after stopping the medicine in 66% of cases.
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.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (37,716 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Labrador Retriever 4,479 reports
- Chihuahua 2,141 reports
- German Shepherd Dog 2,131 reports
- Shih Tzu 2,021 reports
- Yorkshire Terrier 1,933 reports
- Golden Retriever 1,927 reports
- Pit Bull 1,468 reports
- Australian Shepherd Dog 1,446 reports
- Terrier 1,040 reports
- Boxer (german Boxer) 978 reports