Bravecto (fluralaner) for cats is a topical parasiticide manufactured by Merck Animal Health that provides 12 weeks of flea and tick protection with a single application. This extended duration sets Bravecto apart from most other flea and tick products, which require monthly application. For cat owners looking for a less frequent dosing schedule, Bravecto offers a convenient option that may also improve compliance with parasite prevention.
Bravecto is available as a topical solution for cats and as a chewable tablet for dogs. This article focuses on the feline topical formulation.
What Is Bravecto Used For?
Bravecto for cats is indicated for the treatment and prevention of flea infestations and the treatment and control of tick infestations.
| Parasite | Protection Details |
|---|---|
| Fleas (Ctenocephalides felis) | Kills adult fleas for 12 weeks; starts killing fleas within 12 hours of application |
| Black-legged (deer) ticks (Ixodes scapularis) | Kills ticks for 12 weeks |
| American dog ticks (Dermacentor variabilis) | Kills ticks for 8 weeks |
Bravecto for cats does not prevent heartworm disease, treat ear mites, or control intestinal worms. If your cat needs protection against these additional parasites, your veterinarian may recommend a separate heartworm preventive or a broader-spectrum product. Discuss your cat’s overall parasite prevention needs with your veterinarian.
How Does Bravecto Work?
Fluralaner, the active ingredient in Bravecto, belongs to the isoxazoline class of parasiticides. It works by inhibiting the nervous system of fleas and ticks through the GABA-gated and glutamate-gated chloride channels. This causes uncontrolled nerve activity in the parasites, leading to paralysis and death.
After topical application, fluralaner is absorbed through the skin and distributed systemically throughout the cat’s body. Fleas and ticks are exposed to fluralaner when they bite the cat and feed on its blood. The drug is not a repellent — parasites must bite the cat to be killed.
Fluralaner has a long half-life in cats, which is what enables the 12-week duration of protection from a single application. The drug is eventually metabolized and excreted, with peak blood concentrations typically occurring within 3-14 days after application.
Dosage
Bravecto for cats is applied topically once every 12 weeks (approximately every 3 months). Your veterinarian will recommend the correct tube size based on your cat’s body weight.
| Cat Weight Range | Fluralaner Content per Tube | Application Frequency |
|---|---|---|
| 2.6-6.2 lbs (1.2-2.8 kg) | 112.5 mg | Every 12 weeks |
| 6.2-13.8 lbs (2.8-6.25 kg) | 250 mg | Every 12 weeks |
| 13.8-27.5 lbs (6.25-12.5 kg) | 500 mg | Every 12 weeks |
Important notes:
- Bravecto is approved for cats and kittens 6 months of age and older, weighing at least 2.6 lbs (1.2 kg).
- Apply every 12 weeks for continuous flea and tick protection. For American dog ticks specifically, re-application every 8 weeks may be needed (consult your veterinarian).
- Do not split doses between cats. Each tube is designed for a single cat within the indicated weight range.
- Always follow your veterinarian’s specific recommendations.
How to Give Bravecto to Your Cat
Bravecto for cats is a topical solution applied directly to the skin.
Application steps:
- Remove the tube from its packaging. Hold upright and twist the cap to open.
- Part the fur on your cat’s back at the base of the skull (between the shoulder blades) to expose the skin.
- Place the tip of the tube directly on the exposed skin.
- Squeeze the tube firmly to apply the entire contents in one spot directly on the skin.
- Check that the tube is empty by squeezing again.
- Avoid touching the wet application site. Keep other pets away until it is dry.
Tips:
- Apply when your cat is calm. After a meal or during a relaxed period is often a good time.
- For cats that resist topical application, have a second person gently hold the cat.
- Avoid bathing your cat or allowing water exposure for at least 3 days after application.
- If you have multiple cats, separate them after application until the product dries to prevent ingestion through mutual grooming.
Side Effects
Bravecto for cats is generally well tolerated. The following side effects have been observed in field studies and post-market reporting.
| Common Side Effects | Serious Side Effects (Contact Your Vet) |
|---|---|
| Vomiting | Tremors or muscle twitching |
| Mild skin irritation at application site | Seizures |
| Hair loss at application site | Incoordination (ataxia) |
| Decreased appetite (temporary) | Excessive drooling |
| Lethargy | Signs of allergic reaction (swelling, difficulty breathing) |
| Diarrhea | Persistent vomiting |
FDA isoxazoline class warning: All isoxazoline products (including Bravecto, Revolution Plus, NexGard, Simparica, and Credelio) carry an FDA class-wide warning regarding the potential for neurologic adverse events such as muscle tremors, ataxia, and seizures. These events have been reported in a small number of animals and are generally uncommon. Cats with a history of seizures or neurologic disorders may be at higher risk. Discuss your cat’s medical history with your veterinarian before starting Bravecto.
Drug Interactions
No specific drug interactions with Bravecto for cats have been identified in product labeling. However, inform your veterinarian about all other medications, supplements, and parasite prevention products your cat receives.
Avoid combining Bravecto with other topical flea/tick products unless directed by your veterinarian, as using multiple parasiticides simultaneously may increase the risk of adverse reactions.
Contraindications
- Do not use on cats under 6 months of age or weighing less than 2.6 lbs.
- Use with caution in cats with a history of seizures or neurologic disorders.
- The safety of Bravecto in breeding, pregnant, or lactating cats has not been fully evaluated. Consult your veterinarian.
- Do not give the dog chewable formulation to cats. The cat product is a topical solution only.
Storage
- Store at room temperature (68-77 degrees F / 20-25 degrees C).
- Keep in original packaging until ready to use.
- Protect from excessive heat and moisture.
- Keep out of reach of children and pets.
Cost & Availability
Bravecto for cats is a prescription medication available through veterinary clinics and authorized online pharmacies.
| Package | Approximate Cost |
|---|---|
| 1 tube (12 weeks of protection) | $30-$55 |
| 2 tubes (24 weeks of protection) | $55-$100 |
| Annual cost (approximately 4.3 applications) | $130-$240 |
- Prices vary by cat weight range, geographic location, and pharmacy.
- When comparing costs to monthly products, note that Bravecto requires only about 4 applications per year versus 12 for monthly products. The per-month cost may be comparable or lower.
- Manufacturer rebates may be available. Check the Bravecto website or ask your veterinarian.
- No generic version of Bravecto is currently available.
Note: Bravecto for cats does not include heartworm or intestinal worm protection. If your cat also needs these, factor in the cost of a separate heartworm preventive when comparing overall parasite prevention costs.
FAQ
Q: Why does Bravecto last 12 weeks when most products are monthly? A: Fluralaner has an unusually long half-life in cats, meaning it stays in the bloodstream at effective concentrations for approximately 12 weeks after a single topical application. This pharmacokinetic property is unique to fluralaner and is not shared by most other flea and tick active ingredients.
Q: Does Bravecto prevent heartworm in cats? A: No. Bravecto for cats provides flea and tick protection only. If your cat is at risk for heartworm disease (which includes most cats, even indoor cats, due to mosquito exposure), your veterinarian will recommend a separate heartworm preventive.
Q: Is the Bravecto chewable tablet available for cats? A: No. Bravecto for cats is available as a topical solution only. The chewable tablet formulation is for dogs. Do not give the dog chewable to cats.
Q: Can I use Bravecto on my kitten? A: Bravecto is approved for cats and kittens 6 months of age and older, weighing at least 2.6 lbs. For younger kittens, consult your veterinarian about age-appropriate parasite prevention options.
Q: What if I see fleas on my cat after applying Bravecto? A: Bravecto kills fleas after they bite and begin feeding. It does not repel fleas, so you may still see fleas on your cat, particularly in the first hours after application or if your cat is in a heavily infested environment. Newly acquired fleas should be killed within hours of feeding. If you continue to see a large number of fleas, consult your veterinarian — environmental flea control (treating the home) may also be needed.
Sources & References
- FDA - Bravecto (Fluralaner) for Cats Approval Information
- Merck Animal Health - Bravecto for Cats Product Information
- Merck Veterinary Manual - Flea and Tick Control in Cats
- VCA Animal Hospitals - Flea Control in Cats
- FDA - Fact Sheet for Pet Owners about Isoxazoline Products
- American Association of Feline Practitioners - Parasite Prevention
This content is for informational purposes only and is not a substitute for professional veterinary advice. Always consult your veterinarian to determine the best parasite prevention plan for your cat.