Will NexGard Kill Existing Ticks?

Discover if NexGard will effectively eliminate existing ticks and protect your furry friend.

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Ticks are pesky parasites that can cause a range of health issues for both humans and pets. When it comes to protecting our furry friends from these blood-sucking pests, NexGard is a popular choice among pet owners. But can NexGard kill existing ticks? In this article, we will explore the effectiveness of NexGard in eliminating ticks and keeping our pets safe.

Understanding NexGard

Before delving into the efficacy of NexGard in killing existing ticks, let’s first understand what NexGard is. NexGard is a chewable flea and tick treatment specifically designed for dogs. It contains the active ingredient afoxolaner, which is known for its potent insecticidal properties. NexGard is highly effective in preventing and treating tick infestations in dogs.

How Does NexGard Work?

NexGard works by targeting the nervous system of ticks and fleas. When a dog ingests NexGard, afoxolaner is absorbed into the bloodstream. When ticks or fleas feed on the dog’s blood, they are exposed to afoxolaner, which disrupts their nerve activity. This ultimately leads to paralysis and death of the ticks and fleas.

Can NexGard Kill Existing Ticks?

Yes, NexGard can kill existing ticks. However, it’s important to note that NexGard is primarily a preventive treatment and works best when used regularly to prevent tick infestations. It may take some time for NexGard to kill existing ticks that are already on your dog. The ticks need to bite the dog and come into contact with afoxolaner in order to be affected.

How Long Does It Take for NexGard to Kill Ticks?

The time it takes for NexGard to kill ticks can vary depending on the individual tick and the extent of the infestation. In general, NexGard starts killing ticks within 24 hours of administration. However, it may take up to 48 hours for all the ticks to be killed. It’s important to continue using NexGard as directed by your veterinarian to ensure complete eradication of ticks.

Is NexGard Effective Against All Types of Ticks?

NexGard is effective against a wide range of ticks, including the most common species such as the American dog tick, black-legged tick (deer tick), and lone star tick. However, it’s always a good idea to consult with your veterinarian to determine the specific ticks prevalent in your area and confirm that NexGard is the most suitable treatment option for your dog.

Combining NexGard with Tick Removal

While NexGard is highly effective in killing ticks, it’s important to note that it may not prevent all tick bites. Some ticks may still attach to your dog before they are killed by NexGard. Therefore, it’s crucial to regularly check your dog for ticks and promptly remove any ticks you find. Use fine-tipped tweezers to grasp the tick as close to the skin as possible and gently pull it straight out. Be sure to disinfect the area afterward.


In conclusion, NexGard is a powerful tool in the fight against ticks. It can effectively kill existing ticks, but it works best as a preventive treatment. By regularly administering NexGard to your dog, you can significantly reduce the risk of tick infestations and the associated health problems. However, it’s important to combine NexGard with regular tick checks and removal to ensure the best protection for your furry friend.

will nexgard kill existing ticks

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