Nexgard Review - Do Fleas Have to Bite For Nexgard to Work?

Nexgard, a beef-flavored chewable from Merial, is a topical flea and tick treatment that is effective against both new and existing infestations. Its active ingredient, afoxolaner, works by disrupting the nervous system of the flea, causing it to undergo hyperexcitation and ultimately die. The product is very effective at eliminating both new and existing infestations of fleas and ticks and is safe for both dogs and humans.

NexGard kills fleas quickly, killing them before they lay eggs and continue the cycle. With a course of treatment, flea infestations will decrease drastically in just two to three months. The duration will vary depending on the environmental conditions of the area where you live.

Nexgard is a veterinarian-approved flea and tick treatment. It is a monthly oral chew for dogs that is designed to control the flea population. It works by dispersing the active ingredient throughout the body of your dog. It works best if the fleas bite your dog, but they do not need to bite him or her in order to be protected.