What Does NexGard Treat?

what does nexgard treat
Discover what NexGard treats and how it can effectively protect your pet from fleas and ticks.

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NexGard is a popular veterinary medication used to treat and prevent flea and tick infestations in dogs. It is an oral chewable tablet that provides a convenient and effective solution for pet owners to protect their furry friends from these pesky parasites. In this article, we will explore the various aspects of NexGard and what it treats.

Understanding Fleas and Ticks

Before delving into the specifics of what NexGard treats, let’s first understand the menace of fleas and ticks. These tiny creatures may seem harmless, but they can cause significant discomfort and health issues for dogs.


Fleas are wingless insects that feed on the blood of mammals, including dogs. They can easily infest your pet’s fur and cause intense itching and scratching. In addition to the discomfort, fleas can also transmit diseases and cause allergic reactions in some dogs.


Ticks are arachnids that attach themselves to the skin of animals, including dogs, and feed on their blood. These blood-sucking parasites can transmit serious diseases such as Lyme disease, Rocky Mountain spotted fever, and ehrlichiosis. Tick infestations can lead to various health problems and even be life-threatening if not addressed promptly.

Introducing NexGard

NexGard is a revolutionary flea and tick treatment that offers a safe and effective solution for pet owners. It contains the active ingredient afoxolaner, which belongs to a class of medications called isoxazolines. Afoxolaner works by targeting the nervous system of fleas and ticks, ultimately leading to their death.

How Does NexGard Work?

When a dog ingests NexGard, the active ingredient is rapidly absorbed into the bloodstream. As fleas and ticks feed on the dog’s blood, they are exposed to afoxolaner, which kills them within hours. NexGard provides continuous protection for up to 30 days, ensuring that your pet remains flea and tick-free.

Is NexGard Safe?

NexGard has been extensively tested and is considered safe for use in dogs. However, as with any medication, there may be some potential side effects. The most commonly reported side effects include vomiting, diarrhea, lethargy, and loss of appetite. These side effects are usually mild and transient.

It is important to consult with your veterinarian before starting NexGard or any other flea and tick treatment for your dog. They will be able to assess your pet’s specific needs and determine if NexGard is the right choice for them.

What Does NexGard Treat?

Now that we have a good understanding of fleas, ticks, and NexGard, let’s dive into what exactly NexGard treats.

Flea Infestations

NexGard is highly effective in treating and preventing flea infestations in dogs. It kills adult fleas before they have a chance to lay eggs, effectively breaking the flea life cycle. This helps eliminate existing fleas and prevents re-infestation.

In addition to killing adult fleas, NexGard also provides residual activity, meaning it continues to kill newly acquired fleas for up to 30 days. This ensures that your dog remains protected from fleas throughout the treatment period.

Tick Infestations

NexGard is equally effective in treating and preventing tick infestations in dogs. It kills several species of ticks, including the American dog tick, black-legged tick, and lone star tick. By eliminating ticks, NexGard helps reduce the risk of tick-borne diseases and keeps your pet safe and healthy.

Flea Allergy Dermatitis

Flea allergy dermatitis (FAD) is a common skin condition in dogs caused by an allergic reaction to flea bites. Dogs with FAD can experience intense itching, redness, and skin irritation. NexGard not only kills fleas but also helps alleviate the symptoms of FAD by eliminating the source of the allergic reaction.

Prevention is Key

While NexGard is highly effective in treating existing flea and tick infestations, it is equally important to use it as a preventive measure. Regular use of NexGard can help protect your dog from the discomfort and health risks associated with fleas and ticks.

By administering NexGard once a month, you can ensure that your pet remains protected year-round. This proactive approach is crucial, especially in areas where fleas and ticks are prevalent.


NexGard is a trusted and reliable solution for treating and preventing flea and tick infestations in dogs. Its unique formulation and active ingredient, afoxolaner, provide fast and long-lasting protection for your furry friend. By using NexGard as directed by your veterinarian, you can ensure that your dog stays happy, healthy, and free from the nuisance of fleas and ticks.

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