Is There a Shot for Dogs to Prevent Ticks?

You’ve probably been there — standing in the pet supply aisle comparing topical drops, collars, and chewable tablets, wondering if a simpler option exists. The question about a shot for dogs to prevent ticks has been asked for years, usually met with a shrug.

That answer changed in July 2025. The FDA approved the first long-acting injectable flea and tick treatment for dogs, offering year-long coverage from a single veterinary visit. Here’s what you need to know about how it works, how it compares, and whether it fits your dog’s needs.

What Is the Tick Shot for Dogs?

The injectable tick prevention for dogs is Bravecto Quantum, a prescription-only drug containing the active ingredient fluralaner. Unlike monthly pills or spot-on treatments, this shot is administered by a veterinarian and provides continuous protection against fleas and ticks for 8 to 12 months from a single dose.

The product is approved for dogs at least 6 months of age. Because it’s a long-acting formulation, the medication stays at protective levels in your dog’s system for nearly a full year without any at-home dosing required.

Why the Timing Matters

Once injected, the drug may take 3 to 5 days to reach full effectiveness against ticks. By day six, any ticks on the dog are killed. That short ramp-up period is worth noting — if your dog is due for protection right away, your veterinarian may suggest a temporary backup plan during the first few days.

Why the Shot Changes the Conversation

The main appeal of an injectable tick prevention option comes down to one word: convenience. Monthly treatments are effective, but they rely on you remembering the exact date, applying it correctly, and keeping your dog from bathing or swimming within a certain window. The shot removes those variables entirely.

• No more monthly reminders: One injection replaces 8 to 12 monthly doses of oral or topical products, which can simplify your dog’s parasite prevention routine considerably.
• No application errors: Topical treatments need to be applied to dry skin at the base of the neck, and oral chews must be fully swallowed. With the injection, the dose is handled entirely by your veterinarian.
• Works regardless of bathing: Since the drug circulates internally, swimming, rain, and baths have no effect on its effectiveness — a major advantage over many spot-on treatments.
• Fewer gaps in protection: Studies on pet owner compliance suggest many dogs miss at least one monthly dose per year. The shot eliminates those accidental gaps entirely.
• Broader tick coverage: According to the manufacturer, Bravecto Quantum treats and controls four tick species, including the Asian longhorned tick, which some topical products do not cover.

That said, the convenience does come with a trade-off — the injection must be given by a veterinarian during an office visit, which means an annual appointment is non-negotiable.

How the Fluralaner Injection Works

Fluralaner belongs to a class of drugs called isoxazolines. When a tick bites a dog that has received the injection and takes a blood meal, it ingests the drug’s active molecule. The compound then targets the tick’s nervous system, leading to paralysis and death before the parasite can transmit most tick-borne diseases.

The FDA’s July 2025 approval of Bravecto Quantum for year-long protection against fleas and ticks was documented in the agency’s long-acting flea treatment announcement. This marked a major shift from the previous standard of monthly or quarterly dosing options.

Because the drug stays in the dog’s system for many months, the kill rate remains consistent throughout the protection window. Unlike some topicals that lose potency toward the end of the month, the injectable formulation is designed to maintain steady levels.

Each method has its own strengths, and the best choice often depends on your dog’s lifestyle, your comfort with at-home dosing, and regional tick pressure. The injectable option adds a particularly strong contender for owners who prioritize minimal effort year-round.

How the Shot Compares to Other Tick Prevention Options

Choosing between the injectable shot and other tick prevention methods involves weighing convenience against flexibility. Here are the main factors to consider:

1. Duration of protection: The injectable covers 8 to 12 months from one dose. Oral chews typically last 1 to 3 months, while most topicals require monthly application. Collars can last up to 8 months but must stay in place continuously.
2. No wiggle room once given: With oral or topical products, you can stop, switch brands, or adjust timing as needed. The injection is a year-long commitment — once it’s administered, you cannot pause the medication.
3. Potential for side effects: As with any medication, some dogs may experience mild side effects including lethargy, decreased appetite, or injection-site reactions. Speak with your veterinarian about your dog’s specific health history before choosing this option.
4. Cost and visit requirements: The injection requires an annual veterinary visit and the cost of the medication itself, which may be higher upfront than a single month of topical or oral treatment. However, it may save money over the full year for some owners.
5. Regional tick considerations: In areas with year-round tick activity, the continuous protection of the injectable may be particularly valuable. In regions with seasonal tick pressure, shorter-acting options might offer more flexibility.

Is the Tick Shot Right for Your Dog?

The shot is a solid option for healthy adult dogs 6 months and older, especially those who tolerate veterinary visits well and don’t have a history of negative reactions to isoxazoline drugs. It’s particularly appealing for dogs who swim frequently, since topical treatments can lose effectiveness with repeated water exposure.

As noted on the parasite prevention guidelines page, the drug works by having fleas and ticks ingest the active molecule when they bite the dog — the parasites die before they can cause significant harm or transmit many diseases.

When to Discuss Alternatives With Your Vet

If your dog has a history of seizures or neurological issues, your veterinarian may recommend a different class of medication. Dogs who are pregnant, nursing, or on certain other medications may also need a tailored approach. The injectable option is best chosen after a thorough discussion of your dog’s medical history and lifestyle.

The Bottom Line

A shot for dogs to prevent ticks now exists, and it represents a genuine leap in convenience for parasite control. One injection replaces up to a year’s worth of monthly products, with no application errors, no missed doses, and no bathing restrictions. It covers four tick species and works the same way oral isoxazolines do — by killing ticks after they bite.

That said, yearly tick prevention isn’t one-size-fits-all. Your dog’s age, health history, and local tick pressure all factor into the right choice. A conversation with your veterinarian about the injectable option versus oral or topical alternatives can help you match the approach to your dog’s specific needs and your comfort level with at-home dosing.