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Pet Bucket Blog

Is Bravecto for cats safe?

 by ben on 22 May 2019 |
6 Comment(s)
Bravecto is the long-lasting topical treatment that provides 12 weeks of protection from fleas and ticks.

Its active ingredient has been tested and FDA approved, so you know you’re getting safe and effective protection for your cat. The easy-to-apply, non-greasy topical formula gives your pet longer lasting protection than most leading brands, reducing the chances you miss a dose and create gaps in your pet’s protection. Its active ingredient Fluralaner has been FDA approved, so you know you’re getting safe and effective treatment for your cat.

Field trials found that one dose of Bravecto killed 100 percent of fleas within 8 hours and continued fighting more than 98 percent of fleas for 12 weeks. Bravecto kills and controls four species of ticks, too, arming your cat against harmful diseases such as Lyme and Rocky Mountain Spotted Fever. Its fast-acting, powerful formula is thanks to its active ingredient, Fluralaner, an insecticide and acaricide that attacks the nervous systems of fleas and ticks. Within hours of applying Bravecto topical treatment, the medication reaches the tissue fluids just under your cat’s skin, where it attacks parasites as they bite. But, because Fluralaner works differently on invertebrates than mammals, Bravecto’s powerful formula is safe for use on cats.

Fluralaner works by disrupting two major systems in invertebrates’ bodies. The first, known as GABA-gated (gamma-aminobutyric acid) channels, play a role in calming nerve transmissions and create an overall relaxation effect in the body. Fluralaner upsets this process, causing waves of nerve signals that increase seizure activity and produce fatal effects in fleas and ticks. At the same time, Fluralanerdisruptsglutamate-gated channels, which help nerves send signals to other cells. Fluralaner opens these channels to increase transmissions, intensifying seizure activity and Bravecto’s effectiveness in the fight against fleas and ticks.
Clinical trials found Bravecto caused no serious adverse reactions in cats. The most common side effects included vomiting, diarrhea, hair loss, decreased appetite, lethargy, and scabs—all symptoms unrelated from your feline’s nervous system. However, if your cat has a history of neurological abnormalities or has ever been diagnosed with a seizure disorder, you should talk to your veterinarian before using Bravecto.

Bravecto has not been tested on breeding, pregnant, or nursing cats. Its long-lasting topical formula provides proven relief from fleas and ticks for up to 12 weeks, so discuss switching to Bravecto for cats with your veterinarian to kill fleas and ticks fast and providing long-lasting relief from biting pests.


Barbara Ralyea - Comment
Barbara Ralyea03 Apr 2020Reply
I want to protect my cat not cause it any harm or pain.
sam jhon  - Comment
sam jhon 06 Jan 2021Reply
We use Bravecto for working collies, a lurcher and for the now deceased springer and we now live in an area with a very large tick population. Seems to be working well. Try Petcareclub .com

Deborah - Comment
Deborah17 Jul 2021Reply
Have been using Bravecto for the last two years, just recently I put it on my Grandcat and now she's got a bald spot on her neck. This hasn't happened before, I just wonder if it's because she just had two teeth pulled about three weeks ago?
Donna - Comment
Donna24 Feb 2022Reply
Our cat has had her second round of Bravecto, warning, I will not give her any more doses to our beloved cat. She got a bad reaction both times with lumps of varying sizes. She also was very tired for the first week after the dose was applied.
Serena - Comment
Serena16 May 2022Reply
Please do not use Bravecto on your cat or dog. I used half the recommended dose on my 27 pound Siberian cat 6 days ago, and he has had ataxia and was very lethargic for the first three days he has somewhat improved but is still walking with a bad wobble- it is heartbreaking. How can they sell these poisons call them medication?
Maria - Comment
Maria06 Jun 2022Reply
I treated both my cats with the topical Bravecto. On day 2 I noticed they weren’t eating as much and by day three they were very lethargic and unsteady on their feet. Both cats experienced symptoms and ended up at the emergency vet office, $500 . The vet said he had seen this reaction before and that it should gradually subside . I did use Dawn dish detergent to wash the residual medication off their skin and fur.When I called the 800 number for Bravecto/Merck they said Lethargy was a side effect but that usually happened within hours after application. It’s now day five and my cats are still lethargic but not as unsteady walking. Their appetite is still poor. I’ll never use this product again.
Amu - Comment
Amu06 Jun 2022Reply
Hi Maria, I'm so sorry that happened to your cats. My vet prescribed this to my cat and I'm a little scared to use it. How are your cats doing now? What symptoms did they experience?

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