Bravecto® Dosage Calculator for Dogs By Weight
Find the precise FDA-approved dosage, weight band, and safety parameters for your dog.
Bravecto Administration & Protection Quick Guide
Formulations
- Bravecto Chews: Pork-flavored oral tablets; must be given with a meal.
- Bravecto Topical: Spot-on liquid applied between shoulder blades; water-resistant.
- Bravecto Quantum: Vet-administered annual long-acting injectable.
- 1-Month Chews: Monthly oral options custom-made for growing puppies.
Protection Spectrum
- Adult Fleas: Kills & prevents infestations for 12 weeks. Action starts in 2 hours.
- Major Ticks: 12 weeks of protection against Black-legged, American dog, Brown dog, and Asian longhorned ticks.
- Lone Star Ticks: Protects for 8 weeks only. Redosing shifts based on vet guidance.
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Fleas and ticks are not just a nuisance to your dog, they are parasites that can directly affect your dog’s health and quality of life. Fleas can make an animal extremely itchy, lead to skin allergies and even carry tapeworms, and ticks carry many deadly diseases including Lyme disease, ehrlichiosis and anaplasmosis. Due to these health risks, vets highly recommend that dogs always be protected against parasites as part of their care program.
The most trusted solution is (fluralaner) Bravecto Dosage for dogs, a vet recommended, FDA approved chewable product that provides long lasting flea and tick protection in just one chew. Bravecto is one of the longest-lasting treatments (up to 12 weeks) compared to monthly treatments. This fast acting chew starts to work in hours on fleas and ticks and quickly interrupts the flea life cycle and helps to prevent reinfestation.
Another major advantage of Bravecto is how easy and palatable it is to administer; it comes in a tasty, pork flavored chew and is available in five different sizes based on weight, from 4.4 pounds on up. Works on several different types of ticks including black-legged ticks, American dog ticks, brown dog ticks and Asian longhorned ticks and it is effective for up to 8 weeks on the lone star tick.
Thanks to its ease of use, long-lasting relief and efficacy, Bravecto is a great choice for pet owners to make sure their dogs are protected both while they’re enjoying outdoor activities and when they’re settled at home.
Key Takeaways
- Fleas and ticks can lead to serious health problems for dogs such as skin allergies, tapeworms, and diseases such as Lyme disease, ehrlichiosis and anaplasmosis.
- Bravecto (fluralaner) is a vet-recommended, FDA-approved chewable dog flea and tick control treatment.
- It lasts up to 12 weeks, which is longer than monthly treatments.
- The chew begins to eliminate the fleas and ticks within hours and this helps to stop the infestation immediately and also helps to break the life cycle of the parasites.
- It comes in a delicious pork flavoured chew and five dosage sizes based on weight.
- For dogs 4.4 lb or more (based on correct dosage form).
- Kills multiple species of ticks including black-legged, American dog, brown dog and Asian longhorned ticks; controls lone star ticks for up to 8 weeks.
- Side effects might include vomiting, diarrhea, lethargy or loss of appetite, and it’s advised to be careful in dogs with seizure history.
Bravecto Dosage Chart For Dogs By Weight
Standard Bravecto Dosage For Dogs By weight formulas provide up to 12 weeks of continuous protection against fleas and major ticks (8 weeks for Lone Star ticks) and are dosed to deliver a minimum of 11.4 mg/lb (25 mg/kg) of body weight.
| Box Color / Band | Fluralaner Strength | Dog Weight (Pounds – lbs) | Dog Weight (Kilograms – kg) | Formulation Type |
| Yellow Box | 112.5 mg | 4.4 to 9.9 lbs | 2.0 to 4.5 kg | Chewable / Topical |
| Orange Box | 250 mg | Over 9.9 to 22 lbs | Over 4.5 to 10.0 kg | Chewable / Topical |
| Green Box | 500 mg | Over 22 to 44 lbs | Over 10.0 to 20.0 kg | Chewable / Topical |
| Blue Box | 1,000 mg | Over 44 to 88 lbs | Over 20.0 to 40.0 kg | Chewable / Topical |
| Pink Box | 1,400 mg | Over 88 to 123 lbs | Over 40.0 to 56.0 kg | Chewable / Topical |
| Combination | Custom Vet Mix | Over 123 lbs | Over 56.0 kg | Requires Multiple Boxes |
Important Clinical Notes
⚠️ Age & Weight Minimums: Standard 12-week formulas (Chews and Topicals) are strictly for dogs at least 6 months old and weighing over 4.4 lbs (2 kg). For growing puppies aged 8 weeks or older, use Bravecto 1-Month Chews.
- Administration: Bravecto Chews are pork-flavored oral tablets and must be administered with a meal. Topical solutions are applied directly to the skin between the shoulder blades.
- Neurological Precaution: Use with extreme caution in dogs with a known history of seizures, muscle tremors, or ataxia.
- Prescription Required: Bravecto cannot be purchased over-the-counter and requires authorization from a licensed veterinarian.
What is Bravecto for Dogs and How Does It Work?

Bravecto (fluralaner) for dogs is a prescription-only, vet-recommended external parasite preventative that treats and controls flea and tick infestations in dogs. It’s widely available as a chewable tablet (and in some parts of the world, a topical solution) and is dosed according to your dog’s weight to insure safe and effective dosage. It is a flea and tick treatment for dogs that is approved by the FDA and is one of the most common long-term treatments available for parasites.
Bravecto contains fluralaner which is a member of the isoxazoline group of ectoparasiticides. It acts by affecting the nervous system of parasites. Fluralaner is absorbed under the skin into the dog’s tissue fluids after administration. Fleas or ticks take blood from the treated dog and ingest the medication which alters their nervous system, causing paralysis and death. This process starts to work within hours resulting in the death of existing fleas and also helps to prevent the infestation of new ones.
Bravecto medication works well against several tick species such as black-legged (deer) ticks, American dog ticks, brown dog ticks and Asian longhorned ticks, and is also effective against lone star ticks for limited periods of time. Helps reduce flea populations quickly, relieves itching and helps manage flea allergy dermatitis in dogs.
Dogs can get up to 12 weeks of protection against fleas and ticks in a single dose with Bravecto Chews as opposed to monthly treatments. It can only be used on prescription and should only be administered in accordance with veterinary advice, and will be different for different species and for different weights – it is important to use the correct formulation (cat products for dogs or vice versa can result in serious problems).
Its main indication is to treat fleas and ticks, but Bravecto may be prescribed off-label for other parasites as appropriate by a veterinarian, such as for certain types of mange (demodectic mange and sarcoptic mange). It has been found to be generally safe in dogs, even in those that are MDR1 positive, and has very few side effects if used properly.
In summary, Bravecto is a quick, long-lasting and convenient parasite control solution that helps keep dogs safe from damaging parasites, including fleas, ticks, and skin and health issues.
How Is Bravecto Dosed and Given to Dogs?
Bravecto is a drug that is prescribed for use as a flea and tick preventative for dogs, and the dosage is always based on the dog’s weight, age and overall condition as determined by the veterinarian. It has to be used as directed so that it can be safe and effective at controlling parasites.
Bravecto for dogs comes in several different forms:
- Bravecto Chews (oral tablet)
Administered orally typically with meals – this is the most common form for adult dogs. Effective against fleas, most species of ticks for up to 12 weeks and lone star ticks for up to 8 weeks from a single dose. It is usually used on dogs and puppies 6 months or older and 4.4 lbs/2 kg or more. - Bravecto Topical Solution
Directly applied on the skin between the shoulder blades where it then passes into the blood. It also offers 12 weeks worth of protection. It may only be used on clean, dry and healthy skin and dogs should not be allowed to bathe, swim or lick the area until it is completely dry. Minimum age and weight requirements are the same as the chews. - Bravecto 1-Month Chews (for puppies)
This one is formulated specifically for younger dogs and is administered every 30 days due to the different metabolism of fluralaner in puppies. It can be used with puppies 8-weeks or older that weigh 4.4 lbs or more and can be changed later to the 12-week product when the dog is older and has a stable weight.
Bravecto drug for dogs is effective in treating and preventing flea and tick infestations by entering the dog’s system when it bites and killing the pests. Always follow veterinarian’s instructions carefully, and never change the dose or product without veterinary advice.
What Are the Benefits of Bravecto Products for Pets?

Bravecto products are FDA-approved parasite preventatives that are used to prevent parasites in dogs and cats, and may prevent other parasites in some products. The active ingredients in their products, fluralaner (and fluralaner in combination with moxidectin for Bravecto Plus for Cats), are active and provide sustained and rapid kill that help keep pets healthy.
One of the greatest benefits of Bravecto is its long-lasting effects — most chewable and topical products last up to 12 weeks after a single application for protection against fleas and ticks. This results in a much longer-lasting shelter than monthly treatments and enhances convenience and compliance for pet owners.
Bravecto also provides fast-acting control of parasites. Fleas will start to die off in about 8 hours in a dog and 12 hours in a cat. Ticks are also highly affected and will generally start to die within 12 hours in dogs and 48 hours in cats, which will help to decrease infestations and stop the spread of disease.
Other major advantages are:
- Flea and multi-species tick protection in dogs and cats that’s FDA approved
- Bravecto Plus for cats also covers heartworm, roundworm and hookworm.
- Quick flea and tick control to interrupt the life cycle of parasites
- It comes in both topical solution and chewable tablets for a flexible administration.
- A tasty chew treat for dogs flavored with pork that enhances ease of dosing.
- Several dose levels based on weight for proper and safe dosage
- Bravecto 1-month Chews are suitable for puppies as young as 8 weeks old.
In summary, Bravecto products offer long-lasting protection, rapid onset, and ease of use, making them a reliable option for parasite prevention and control in pets.
What Are the Common Side Effects of Bravecto in Dogs?

Bravecto is generally well tolerated in dogs, but most pets don’t have any side effects when the medication is used properly. As with any medication however, there can be mild to moderate reactions particularly with initial doses or if a dog is sensitive to the active ingredient, fluralaner.
The most commonly reported side effects of Bravecto in dogs include:
- Nausea, diarrhea and loss of appetite
- Low energy, lethargy or tiredness
- Increased thirst (polydipsia)
- Flatulence (gas)
These symptoms are generally mild and short-lived and often clear up without treatment.
In some dogs, especially with topical formulations, additional effects may occur such as:
- Itching or irritation at the site of application
- Dry skin/mild hair loss
- Excessive drooling (if accidentally ingested or licked)
There are more serious though uncommon neurologic side effects to isoxazoline class drugs such as Bravecto. These may include:
- Muscle tremors
- Loss of coordination/Stumbling
- Weakness or collapse
- Seizures (even if the dog has not suffered from seizures before)
For this reason Bravecto should be administered carefully in dogs with a history of seizures or neurological diseases. It should also be administered to dogs in the proper age and weight range, and special attention should be paid to making sure that licking on sites where the topical application is made does not occur.
If a dog accidentally gets the topical product or exhibits unusual behavior after being dosed, symptoms include drooling/foaming at the mouth and veterinary attention should be sought immediately should signs exacerbate.
In general, Bravecto side effects are rare; if any occur or do not clear up after application, a veterinarian should be consulted for advice, such as changing the medication or adjusting the dosage.
What Are the Most Serious Risks of Bravecto for Dogs?
Bravecto is generally safe for most dogs, however, the most important risks are associated with neurologic side effects which are rare but important to know. These reactions have been linked to fluralaner, one of the drugs in Bravecto that treats fleas and ticks and is part of the isoxazoline drug class.
The possible risks are most serious in that they involve:
- Dogs have been reported to have seizures following use.
- Weakness or tremors in the muscles, which means the nervous system is affected
- In severe cases, ataxia (loss of coordination) or walking problems.
While these reactions are rare, they can happen in dogs who have not previously had any kind of neurological issues. For this reason, veterinarians may take a bit more precaution when giving Bravecto to dogs with a history of seizures, epilepsy, or just neurological issues in general.
Not only neurologic risks, proper use limitations are important to safety. Bravecto is not recommended in puppies less than 6 months of age (12-week formulation) and correct dose according to age and weight is important for effectiveness and safety. Adverse reactions may occur if it is misused or the dose is incorrect.
A veterinarian should be contacted immediately if a dog exhibits anything unusual after Bravecto administration such as seizures, tremors, weakness or unusual behavior.
The overall risk of these side effects is low, but appropriate screening, accurate dosing and supervision of veterinary staff can minimize the risk of serious side effects.
Does Bravecto Interact With Any Other Dog Medications?
Wherever possible, Bravecto should be used in conjunction with other veterinary medicines, but caution should always be taken when used with other products and should always be administered under your vet’s supervision if your dog shows signs of being on multiple treatments.
Bravecto has been demonstrated to be safe to administer with some of the more commonly prescribed medications in clinical studies, such as:
- Vaccines
- Heartworm prevention medications
- Antibiotics
- Pain relievers
- Steroids
- Deworming products
These findings indicate that Bravecto generally is not known to produce significant interactions with common canine medications.
But there are some cases that still require caution from veterinarians. Don’t use Bravecto with any other flea or tick prevention products, unless instructed by a veterinarian, as it could result in a higher risk of side effects or overdose.
Some highly protein bound drugs may also interact in minor ways, including:
- Nonsteroidal anti-inflammatory drugs (NSAIDs)
- Maropitant
- Warfarin
These drugs have the potential to increase the blood level of one another, but this is usually not clinically significant when using them together.
Due to the fact that no two dogs are alike in their health status, it is important to tell your veterinarian if the dog is currently on any prescription medications, over-the-counter medications, vitamins or herbal supplements prior to beginning Bravecto.
When used properly under veterinary supervision, Bravecto’s safety profile is good, and few drug interactions have been reported.
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FAQs
If your dog misses a dose of Bravecto, what can you do?
If a dose is missed, it is given as soon as possible. If less than a couple of days late, follow the new date and make the necessary changes to the schedule. Never give a double dose. For instance, if a dog is on a 12 week schedule, the dose is late, the next dose should be given 12 weeks from the late dose, not from the initial dose.
How does Bravecto Chews work in dogs?
Bravecto dose for dogs is systemic, which means it penetrates under the skin into the tissue fluids after administration. Fleas and ticks die when they bite and ingest fluralaner. This will help kill fleas, prevent infestations, and control black-legged, American dog, brown dog, Asian long horned, and lone star tick for the indicated length of time.
Does Bravecto pose risks to the safety of pet owners?
Yes, there are basic precautions that should be taken. Do not allow children to use the product, avoid contact with skin, eyes or clothing, wash hands after use. Refrain from touching the topical application area until the topical application area is dry, do not use if allergic to any of the ingredients.
If my dog gets too much Bravecto what should I do?
When used properly there is not a high risk of overdose, however if you suspect your pet may have overdosed or are seeing unusual reactions, contact your vet or an emergency clinic for advice.
Where should Bravecto be kept?
Keep in the original container at a temperature of less than 86°F (30°C). Store away from moisture and heat, and keep away from electricity sparks, flames and other sources of ignition, particularly topical preparations which may be flammable.
Does Bravecto prevent ticks from infecting my dog?
Yes, sometimes ticks will still be noticed shortly after treatment, when the medication starts to take effect. If the ticks persist, talk with your veterinarian to determine if the treatment is being administered correctly, or if another method is necessary.
Can Bravecto be used in combination with other flea/tick products such as K9 Advantix® II?
In general, do not mix flea and tick products unless the veterinarian advises them to do so, as repetition of use may not be necessary, and could lead to higher risks of side effects.
How long does it take Bravecto to kill fleas?
Bravecto chewables start to kill fleas almost immediately, in about 2 hours. It is a topical solution that kills most fleas within 24 hours and is nearly 100% effective in eliminating fleas within 48 hours in dogs.
Does Bravecto drugs kill fleas on dogs?
Yes, Bravecto kills existing fleas and helps control infestations for up to 12 weeks; however, environmental treatment may be required if there is severe infestation in the home or yard.
Final Thoughts
Bravecto Dosage For dogs is a prescription flea and tick prevention that is long-acting and easier to use—it’s time to take control of parasites. Gives up to 12 weeks of protection against the risk of flea infestations and tick-borne diseases and provides quick relief for existing fleas and ticks.
With the correct use, under veterinary supervision, Bravecto is generally well tolerated and convenient, particularly when compared to monthly treatment. But it’s important to be properly dosed according to age, weight, health condition, etc. so that it’s safe and effective.
As with any drug there are risks and precautions, especially for dogs that have a history of neurological problems, which is why pet owners should always be sure to consult with their veterinarian and ensure that they watch their dog carefully after taking it.
In conclusion, Bravecto can be a valuable addition to a holistic approach to managing a dog’s parasite control routine, and can help keep dogs protected, healthy, and comfortable throughout the year.







