NexGard is monthly chewable medication that prevents and controls flea and tick infestations in addition to preventing Lyme disease by killing certain kinds of ticks. NexGard Chews for Dogs are vet-recommended and FDA-approved to kill adult fleas fast before they have a chance to lay eggs. This product is also FDA-approved to help prevent Lyme infections as a direct result of killing black-legged ticks. Each fast-acting chew provides safe and effective protection, killing fleas and ticks for a full month. And the chews are easy to give because dogs love the delicious beef flavor—you may even give them to your dog with or without food! Each NexGard bite-sized monthly dose is gentle enough to give to puppies and dogs as young as 8 weeks, weighing as little as 4 pounds.