Bravecto vs Nexgard: The Ultimate Guide to Flea and Tick Prevention

When it comes to our beloved pets, nothing is more important than ensuring their health and happiness. One crucial aspect of pet care that sometimes gets overlooked is protection against common parasites like fleas and ticks. These tiny creatures can cause significant discomfort and serious health issues for our furry friends. Let’s delve into what fleas and ticks are, their life cycles, and why they pose such a threat to pets.

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Understanding Fleas and Ticks: A Comprehensive Guide for Pet Owners

What are Fleas and Ticks?

Fleas are small, wingless insects that survive by consuming the blood of their hosts. They are notorious for their extraordinary jumping ability, which allows them to move easily from host to host. Their bodies are laterally compressed, permitting easy movement through the hairs of their host.

On the other hand, ticks are arachnids—cousins to spiders and mites—and are larger than fleas. Unlike fleas, ticks don’t jump but rather wait in tall grass or plants and latch onto passing hosts. Once they’ve found a host, ticks burrow their head into the host’s skin to feed on their blood.

The Life Cycles of Fleas and Ticks

Fleas undergo a complete metamorphosis during their life cycle, which includes the stages of egg, larva, pupa, and adult. Adult females lay eggs after feeding on a host, and these eggs fall off the host and into the environment. After hatching, larvae feed on organic debris and the feces of adult fleas. Larvae then spin cocoons to become pupae, and finally emerge as adults when they sense the presence of a potential host.

Ticks follow a different life cycle, known as incomplete metamorphosis. They progress through egg, larva, nymph, and adult stages. After hatching, both larval and nymphal stages require a blood meal to molt and reach the next stage, with each stage typically feeding on a different host. Adult females, after their final blood meal, will lay thousands of eggs before dying.

Why are Fleas and Ticks a Problem for Pets?

Both fleas and ticks pose substantial health risks to pets.

Fleas can cause severe itching and discomfort in pets due to their bites. Some pets can develop an allergy to flea saliva, leading to a condition called Flea Allergy Dermatitis (FAD), which causes intense itching, inflammation, and skin infections. Furthermore, fleas can transmit tapeworms and the bacterial infection, cat scratch disease, to both pets and humans.

Ticks are carriers of various diseases, including Lyme disease, Rocky Mountain spotted fever, and ehrlichiosis, all of which can cause serious illness in pets. Lyme disease, for instance, can lead to symptoms such as fever, loss of appetite, lameness, and swollen joints in dogs.

The Importance of Flea and Tick Prevention: Safeguarding Your Pets’ Health

Preventing flea and tick infestations is not only crucial for the comfort of your pet but also vital for their overall health. These tiny parasites can cause a range of health issues, some of which can be quite severe and even life-threatening. Understanding the potential health risks associated with flea and tick infestations will underscore the importance of regular preventative care.

Health Issues Caused by Fleas

Fleas are more than just a nuisance; they can cause several health problems in pets and even in humans.

Flea Allergy Dermatitis (FAD): This is a common condition in pets, especially dogs and cats, caused by an allergic reaction to flea saliva. Pets with FAD can suffer from severe itching, redness, inflammation, hair loss, and secondary skin infections due to scratching.

Tapeworms: Fleas can also act as a vector for tapeworms. When pets groom themselves, they may ingest fleas carrying tapeworm eggs, which can then develop into adult tapeworms in the pet’s intestines.

Anemia: In severe infestations, especially in young or small pets, the amount of blood loss caused by feeding fleas can lead to anemia, a potentially life-threatening condition characterized by lethargy, weakness, and pale gums.

Bartonellosis: Fleas are known carriers of the bacteria Bartonella henselae, which can cause cat scratch disease in humans. This can lead to fever, headaches, and swollen lymph nodes.

Health Issues Caused by Ticks

Ticks, much like fleas, can transmit a host of diseases to both pets and humans. These diseases are often serious and can have lasting health implications if not treated promptly.

Lyme Disease: Ticks are notorious for transmitting Lyme disease, primarily through the deer tick. In dogs, symptoms can include fever, loss of appetite, lameness, joint swelling, and in severe cases, kidney damage.

Ehrlichiosis and Anaplasmosis: These are tick-borne diseases that can cause fever, loss of appetite, weight loss, lethargy, and bleeding disorders in dogs.

Rocky Mountain Spotted Fever: This disease can be transmitted by several species of ticks and can cause fever, joint pain, vomiting, and potentially severe damage to blood vessels and organs in dogs.

Babesiosis: Transmitted by ticks, Babesiosis infects red blood cells, causing anemia, fever, and weakness in dogs.

Tick Paralysis: Certain ticks can produce a toxin that causes paralysis in dogs. This condition can be reversed by promptly removing the tick.

Introduction to Bravecto and Nexgard: Leading the Charge in Flea and Tick Prevention

When it comes to protecting your pets from fleas and ticks, two names often come to the forefront: Bravecto and Nexgard. These products have become popular choices for pet owners due to their effectiveness and ease of use. Let’s take a closer look at these two solutions, their purpose, and how they work.

Bravecto: Long-lasting Protection

Bravecto is a product by Merck Animal Health designed to provide long-lasting protection against fleas and ticks. One of the standout features of Bravecto is its extended duration of effectiveness. A single dose of Bravecto can protect your pet from fleas and ticks for up to 12 weeks, a feature that sets it apart from many other products on the market.

Bravecto comes in two forms: a chewable tablet for dogs and a topical solution for both dogs and cats. The active ingredient in Bravecto is Fluralaner. Fluralaner works by inhibiting the nervous system of fleas and ticks, causing hyperexcitation, paralysis, and death of these parasites.

Nexgard: Monthly Convenience

Nexgard is a product by Boehringer Ingelheim designed to provide a full month’s protection against fleas and ticks. Unlike Bravecto, Nexgard is administered monthly, making it a more frequent, but equally reliable, option for pet owners.

Nexgard comes as a chewable tablet, making it easy to administer to dogs. The active ingredient is Afoxolaner, a compound that interferes with the nervous system of fleas and ticks, leading to their death.

Both Bravecto and Nexgard start killing fleas within hours of administration and ticks within a day, providing quick relief to your pet. They also protect against several species of ticks, including those that transmit Lyme disease and other serious diseases.

Product Specifications: Understanding Bravecto and Nexgard

Bravecto and Nexgard, two top-notch flea and tick prevention products, are designed to provide maximum protection with minimal hassle. However, they differ in a few key areas, such as the frequency of administration, active ingredients, and the age and species of pets they are suitable for. Let’s delve into the specifics of each product.

Bravecto for DogsNexgard for Dogs
Active IngredientFluralanerAfoxolaner
Action of IngredientSystemic insecticide and acaricide that causes hyperexcitation in fleas and ticks, leading to their paralysis and deathInsecticide and acaricide that interferes with the nervous system of fleas and ticks, leading to their death
Administration FrequencyEvery 12 weeksMonthly
Approved For DogsYes, if they are at least 6 months old and weigh at least 4.4 lbs (2 kg)Yes, if they are at least 8 weeks old and weigh at least 4 lbs (2 kg)
Approved For CatsYes, if they are at least 6 months old and weigh at least 2.6 lbs (1.2 kg) (only for bravecto for cats)No
Product Specifications: Understanding Bravecto and Nexgard

Efficacy of Bravecto vs Nexgard: An Evidence-Based Comparison

When it comes to flea and tick prevention, both Bravecto and Nexgard have proven to be highly effective. These products have been the subject of numerous studies, demonstrating their effectiveness in treating and preventing flea and tick infestations. Let’s dive into the research to see how these two products compare.

Bravecto’s Efficacy

Bravecto has shown impressive results in clinical trials. According to a study published in the journal Parasites & Vectors, a single dose of Bravecto chewable tablets resulted in 100% efficacy against fleas and ticks within 12 hours for up to 12 weeks in dogs. The topical solution has also demonstrated similar results.

Moreover, Bravecto has been shown to kill fleas before they can lay eggs, effectively breaking the flea life cycle and preventing infestation in the pet’s environment. Its ability to provide extended protection for up to 12 weeks can offer significant convenience for pet owners.

Nexgard’s Efficacy

Nexgard has also been proven effective in combating flea and tick infestations. A study published in Veterinary Parasitology found that Nexgard began killing fleas within four hours and achieved 100% effectiveness within 24 hours for 35 days. Similarly, it began killing ticks within 48 hours and achieved 100% effectiveness within 72 hours for at least 30 days.

Nexgard also interrupts the flea life cycle by killing adult fleas before they can lay eggs, thereby preventing infestations. Its monthly administration ensures that the levels of the active ingredient remain consistent, providing ongoing protection against fleas and ticks.

Both Bravecto and Nexgard are effective at treating and preventing flea and tick infestations, with slightly different administration schedules. The choice between the two may come down to personal preference, lifestyle, and the specific needs of your pet.

Side Effects and Safety Concerns: Balancing Efficacy and Safety with Bravecto and Nexgard

While both Bravecto and Nexgard are generally considered safe and effective for most pets, as with any medication, there can be potential side effects. Understanding these side effects and safety concerns can help pet owners make an informed decision about which product is best for their furry friend.

Common Side EffectsVomiting, decreased appetite, diarrhea, lethargy, excessive thirst, flatulenceVomiting, diarrhea, dry/flaky skin, lethargy, lack of appetite
Severe ReactionsSevere vomiting, tremors, seizures, neurological events (rare)Severe vomiting, diarrhea, lack of energy, seizures, itching or rash
ContraindicationsNot recommended for animals with a known history of seizures or neurological disordersNot recommended for animals with a known history of seizures
Side Effects and Safety Concerns: Balancing Efficacy and Safety with Bravecto and Nexgard

Cost Comparison: Evaluating the Value of Bravecto vs Nexgard

The cost of flea and tick prevention is a significant consideration for many pet owners. While both Bravecto and Nexgard are premium products that come with a higher price tag than some other options, they also offer exceptional effectiveness and convenience. Let’s break down the cost comparison to see which product might offer more value for your money.

Average Cost per Dose$40 to $60$20 to $30
Doses per Year4 (quarterly)12 (monthly)
Average Cost per Year$160 to $240$240 to $360
Value for MoneyProvides up to 12 weeks of protection per dose, which can be more convenient for some pet ownersRequires monthly administration, which can be more suitable for pet owners preferring a regular monthly schedule
Cost Comparison: Evaluating the Value of Bravecto vs Nexgard

Alternatives to Bravecto and Nexgard: Exploring Other Flea and Tick Prevention Options

While Bravecto and Nexgard are popular choices for flea and tick prevention, they’re not the only options available. Depending on the specific needs of your pet and your personal preferences, there are other effective products you might consider. Here are a few alternatives:

Frontline Plus

Frontline Plus is a topical solution that kills fleas, flea eggs, and ticks. Its two active ingredients, fipronil and (S)-methoprene, work together to kill adult fleas and ticks and prevent the maturation of flea eggs and larvae. Frontline Plus is applied monthly and is approved for use in dogs and cats.


Seresto is a flea and tick collar that provides protection for up to 8 months. It uses two active ingredients, imidacloprid and flumethrin, to kill and repel fleas, ticks, and lice. Seresto is a good option for pet owners who prefer a ‘set it and forget it’ approach to flea and tick prevention.

Advantage II

Advantage II is another topical solution that kills fleas at all life stages, from egg to adult, but it does not kill ticks. It’s applied monthly and is available for both dogs and cats. If ticks aren’t a concern in your area, Advantage II could be a more cost-effective choice.


Comfortis is an oral tablet that kills fleas but not ticks. It’s given monthly and starts killing fleas within 30 minutes of administration. Comfortis could be a good choice for dogs with skin conditions that can be irritated by topical solutions, but it’s not the best choice if ticks are a concern.


Simparica is a chewable tablet that kills fleas and ticks. It’s administered monthly and begins killing parasites within hours. Simparica is only approved for use in dogs.

Before choosing a flea and tick prevention product, it’s important to consult with your veterinarian. They can provide guidance based on your pet’s size, health status, lifestyle, and the specific flea and tick risks in your area.

Frequently Asked Questions: Clarifying Your Queries on Bravecto vs Nexgard

Choosing the right flea and tick prevention for your pet can raise several questions. Here, we’ve gathered and answered some of the most frequently asked questions to help you make an informed decision.

Q1: Can I switch between Bravecto and Nexgard safely?

Answer: Yes, it’s generally safe to switch between these two products. However, it’s recommended to consult with your veterinarian before making any changes to your pet’s flea and tick prevention regimen. They can provide guidance based on your pet’s specific needs and health status.

Q2: Can I give Bravecto or Nexgard to my pregnant or lactating pet?

Answer: According to the manufacturers, both Bravecto and Nexgard are safe for use in breeding, pregnant, and lactating dogs. Nevertheless, you should always consult with your veterinarian before administering any medication to a pregnant or lactating pet.

Q3: What should I do if I miss a dose?

Answer: If you miss a dose, administer the medication as soon as you remember, and then continue with the regular dosing schedule. It’s important to maintain consistent protection against fleas and ticks. If you’re unsure, contact your veterinarian for advice.

Answer: While both Bravecto and Nexgard are generally safe, an overdose can potentially cause adverse effects such as vomiting, diarrhea, and neurological symptoms. If you suspect your pet has ingested more than the recommended dose, contact your veterinarian immediately.

Q5: Can I use Bravecto or Nexgard in combination with other medications?

Answer: Both Bravecto and Nexgard can be used in conjunction with most other common pet medications. However, it’s always recommended to discuss your pet’s entire medication regimen with your veterinarian to ensure there are no potential interactions.

Remember, your veterinarian is the best source of information for any questions or concerns about your pet’s health. Always consult with them before starting or changing any flea and tick prevention strategy.

Q6: How long after bathing my pet can I administer Bravecto or Nexgard?

Answer: As both Bravecto and Nexgard are oral treatments, bathing your pet does not affect the efficacy of the medication. You can administer these medications before or after a bath, as per your convenience.

Q7: Can I use Bravecto or Nexgard for cats?

Answer: Bravecto has products specifically designed for cats, both in topical and oral forms. Nexgard, however, is only approved for use in dogs. Always use products as directed by the manufacturer and consult with your veterinarian.

Q8: What age should my pet be before they can start using Bravecto or Nexgard?

Answer: Bravecto is approved for puppies and kittens from 6 months of age and older. Nexgard can be administered to puppies from 8 weeks of age and older. Always follow your veterinarian’s advice on when to start flea and tick prevention for your pet.

Q9: How quickly do Bravecto and Nexgard start working?

Answer: Bravecto begins killing fleas within 2 hours and ticks within 12 hours after administration. Nexgard starts killing fleas within 24 hours and ticks within 48 hours. Both products kill 100% of fleas within 24 hours.

Q10: Can these products be used all year round?

Answer: Yes, both Bravecto and Nexgard are designed to be used all year round to provide consistent protection against fleas and ticks. Some pet owners may choose to only use these products during the peak flea and tick season, but it’s generally recommended to maintain protection throughout the year.

Always remember to consult your veterinarian with any concerns or questions related to your pet’s health.

Q11: Do I need a prescription for Bravecto or Nexgard?

Answer: Yes, both Bravecto and Nexgard are prescription medications. You’ll need to consult with your veterinarian who can prescribe these products based on your pet’s weight, age, and overall health status.

Q12: What if my pet vomits after taking Bravecto or Nexgard?

Answer: If your pet vomits soon after taking either medication, it may not have been fully absorbed into their system. In such cases, it’s recommended to redose your pet. However, always consult your veterinarian before doing so.

Q13: Are there any breeds that shouldn’t take Bravecto or Nexgard?

Answer: While these products are generally safe for all breeds, some dogs with a known history of seizures or neurological disorders should avoid these products. Always consult with your veterinarian who can provide guidance based on your pet’s breed and individual health status.

Q14: Can Bravecto or Nexgard protect against heartworms?

Answer: No, neither Bravecto nor Nexgard are designed to protect against heartworms. These products are specifically formulated for flea and tick prevention. Consult your veterinarian for a suitable heartworm prevention product.

Q15: How should I store Bravecto and Nexgard?

Answer: Both products should be stored at room temperature in a dry place and out of reach of children and pets. They should also be kept in their original packaging until use to prevent them from becoming damaged.

Conclusion and Recommendations: Making the Right Choice in Bravecto vs Nexgard

Choosing the right flea and tick prevention for your pet is a vital part of responsible pet ownership. Bravecto and Nexgard are two of the leading products available in the market, each with its own strengths and considerations.

Bravecto stands out with its extended 12-week protection period, reducing the number of doses needed each year. This feature can be particularly beneficial for busy pet owners who prefer a less frequent dosing schedule. It’s also available for both dogs and cats, offering flexibility for households with multiple types of pets.

On the other hand, Nexgard provides a monthly dosing schedule, which can be an excellent fit for pet owners who prefer regular monthly treatments. Its beef-flavored chew is generally well-accepted by dogs, making administration a breeze.

Both products are effective at killing fleas and ticks, and their overall cost per year is fairly comparable. However, they each have potential side effects, with some severe reactions reported, though rare. It’s essential to monitor your pet after administering these medications and consult with a veterinarian if any adverse reactions are noticed.

There are also several alternatives available if Bravecto or Nexgard does not suit your pet’s needs. Products like Frontline Plus, Seresto, Advantage II, Comfortis, and Simparica all offer effective flea and tick prevention.

In conclusion, the choice between Bravecto and Nexgard should be made based on your pet’s specific needs, your lifestyle, and the advice of your veterinarian. It’s essential to ensure consistent protection against fleas and ticks to keep your furry friends healthy and happy.

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