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Dog Health · ParasitesPublished September 6, 2026

Bravecto Quantum: A Year of Flea & Tick in One Shot

By the Tavi Editorial TeamReviewed against veterinary sources

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Bravecto Quantum is an FDA-approved injectable that protects dogs from fleas and ticks for up to a full year in one dose. It uses the same active ingredient as the popular Bravecto chews (fluralaner) in an extended-duration form given by your vet. For owners who struggle to keep up with monthly or quarterly products, the appeal is obvious, but it's a prescription decision to discuss with your vet.

What is Bravecto Quantum?

Bravecto Quantum is an injectable flea and tick preventive for dogs, given by a veterinarian, that provides protection for up to 12 months from a single dose. It's an extended-duration form of fluralaner, the same active ingredient found in the well-established Bravecto chewable and topical products, which have been used for years.

The difference is delivery and duration: instead of a chew every 12 weeks, it's one injection administered at the clinic that lasts up to a year. That's a meaningful convenience for consistent, gap-free coverage.

How does it work and what does it cover?

Fluralaner belongs to the isoxazoline class of parasite treatments. It spreads through the dog's system and kills fleas and ticks when they bite, disrupting their nervous system. Because a parasite has to bite to be affected, you may still see the occasional flea or tick briefly before it dies.

Coverage centers on fleas and several tick species. It is not an all-in-one product, so it does not cover heartworm, intestinal worms, or every parasite. Your vet will still recommend a separate heartworm preventive and may suggest other protection depending on where you live and your dog's lifestyle.

Is it safe? What are the cautions?

Isoxazoline drugs, including fluralaner, have a long track record and are widely used. The FDA has, however, issued a class-wide advisory noting that isoxazolines can be associated with neurologic effects in some dogs, such as muscle tremors, incoordination, or seizures, even in dogs with no prior history.

Most dogs tolerate these products well, but there are real considerations with a year-long injectable: unlike a chew, you can't stop the dose partway if a reaction occurs. That makes an honest conversation with your vet important, especially for dogs with a history of seizures. Watch for and report any tremors, wobbliness, or seizures after administration.

Who is it best for?

Bravecto Quantum tends to suit:

  • Owners who forget or fall behind on monthly or quarterly products, leaving protection gaps
  • Dogs in high flea and tick pressure areas where consistency really matters
  • Households where giving oral or topical products reliably is difficult

It may be less ideal for dogs with a seizure history or those who react to isoxazolines, and it's used according to label age and weight guidelines. Your vet will weigh your dog's health, history, and where you live before recommending it.

How do I keep the yearly schedule on track?

The whole benefit of a yearly shot is not having to remember monthly, but you still don't want the protection to lapse a day early or late. Note the date it was given and when the next one is due.

In Tavi you can log the injection as a treatment and set a reminder for roughly a year out, so you're prompted to rebook before coverage runs out. You can also store the product and lot details and keep a note of any reactions. Pair this with your separate heartworm preventive, and you'll have your dog's full parasite plan in one place, ready to export as a vet-ready PDF.

Frequently asked questions

Does Bravecto Quantum protect against heartworm?

No. It covers fleas and ticks only. Heartworm is prevented with a separate medication, and your vet will still recommend year-round heartworm protection alongside it. Depending on your area and your dog's lifestyle, your vet may also suggest coverage for intestinal worms or other parasites.

Is the yearly injection safe for all dogs?

Most dogs tolerate fluralaner well, but the FDA notes isoxazolines can occasionally cause neurologic effects like tremors or seizures. Because a year-long dose can't be stopped partway, discuss your dog's history, especially any seizures, with your vet before choosing it. Report any reactions promptly.

How is it different from Bravecto chews?

It's the same active ingredient, fluralaner, in an extended-duration injectable given by your vet that lasts up to 12 months, versus a chew given every 12 weeks. The choice comes down to convenience, your dog's tolerance, and your vet's judgment about what fits your situation best.

How much does Bravecto Quantum cost?

Pricing varies by clinic, region, and your dog's weight, since dosing is weight-based, plus any exam fee. As a single yearly dose, the upfront cost is higher than one month of protection but may compare favorably to a year of other products. Ask your clinic for an exact quote.

What should I do if my dog reacts after the injection?

Contact your vet promptly, especially if you see tremors, wobbliness, unusual behavior, or a seizure. Because the dose is long-acting, your vet may need to manage symptoms supportively and will file an adverse event report. Keep a dated note of what you observed to share with the clinic.

Tavi's guides are informational and not a substitute for professional veterinary advice, diagnosis or treatment. When in doubt, call your veterinarian. Sources: U.S. Food and Drug Administration (FDA), Center for Veterinary Medicine; Merck Animal Health Bravecto product label; American Veterinary Medical Association (AVMA); Companion Animal Parasite Council (CAPC)

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