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NexGard Chews Flea & Tick Protection for Dogs

NexGard® (afoxolaner) Chewables; vet-recommended flea & tick protection
NexGard® (afoxolaner) Chewables; kills fleas and ticks

NexGard

One monthly chew will keep your dog protected from fleas and ticks, plus dogs love the delicious beef flavor, making it easy to give with or without food.1 Nexgard is also FDA-approved to prevent the infections that cause Lyme disease by killing black-legged ticks. it is safe for puppies who are 8 weeks of age and who weigh 4 pounds or more.

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#1 Dog-Preferred Chew1

NexGard’s delicious beef flavor makes it the #1 dog-preferred chew over other chews that kill fleas and ticks.1

Vet Recommended

Flea & tick protection for every season, prescribed over 300 million times.1

Product Details

With one little NexGard® (afoxolaner) chew comes the confidence that you’re giving your dog vet-recommended flea and tick control.1 Numerous studies have proven that NexGard is both an effective and safe oral treatment for flea and tick protection. NexGard® flea and a tick control chewable is approved by the FDA to prevent infections that cause Lyme disease in dogs as a result of killing black-legged ticks. And each bite-sized monthly flea and tick treatment dose is safe to give to puppies and dogs as young as 8 weeks, weighing as little as 4 pounds.

Nexgard chews are #1 preferred and have a delicious beef flavor. And because you should feel just as good about the medicine your dog receives as he does taking it, the ingredients in each NexGard flea and tick protection chew have been carefully designed to quickly kill fleas and ticks for a full month, killing fleas before they have a chance to lay eggs and black-legged ticks before they transmit Lyme infections. NexGard chews are flea and tick control for dogs that are easy to give, effective, and enjoyable, month after month.

  • Vet-recommended flea and tick control that kills fleas fast, before they can lay eggs.1
  • This flea and tick treatment product is FDA-approved to prevent Lyme infections as a direct result of killing black-legged ticks.
  • Kills fleas and ticks all month long.
  • NexGard (afoxolaner) flea and tick chewables are #1 dog-preferred and have a delicious beef flavor.1
  • Safe for dogs and puppies as young as 8 weeks, weighing 4 pounds or more.
  • Administered orally with or without food and remains active for a full month.

NexGard (afoxolaner) is for use in dogs only. The most frequently reported adverse reactions include vomiting, itching, lethargy, diarrhea, and lack of appetite. The safe use of NexGard in pregnant, breeding, or lactating dogs has not been evaluated. Use with caution in dogs with a history of seizures or neurologic disorders. For more information, contact your veterinarian or refer to the full prescribing information.

Afoxolaner

IMPORTANT SAFETY INFORMATION:

NexGard® (afoxolaner) is for use in dogs only. The most frequently reported adverse reactions include vomiting, itching, lethargy, diarrhea, and lack of appetite. The safe use of NexGard® in pregnant, breeding, or lactating dogs has not been evaluated. Use with caution in dogs with a history of seizures or neurologic disorders. For more information, contact your veterinarian, visit NexGardForPets.com or refer to the full prescribing information.

NexGard® is a registered trademark of Boehringer Ingelheim Animal Health France, used under license. ©2025 Boehringer Ingelheim Animal Health USA Inc., Duluth, GA. All rights reserved. HEARTGARD® and the Dog & Hand logo® are registered trademark of Boehringer Ingelheim Animal Health USA Inc. ©2025 Boehringer Ingelheim Animal Health USA Inc., Duluth, GA. All rights reserved.

Frequently Asked Questions

NexGard® chews have been carefully designed to quickly kill fleas and ticks for a full month. Each bite-sized dose should be given once a month, year-round to your dog. NexGard Chews are administered orally and can be given with or without food.

NexGard® chewables contain afoxolaner, which is rapidly absorbed into the bloodstream after administration. When fleas and ticks ingest blood containing afoxolaner, it causes hyperexcitation and death in these parasites.

NexGard® chews kill fleas and ticks fast for a full month, killing fleas before they have a chance to lay eggs. NexGard chews are approved by the FDA to prevent Lyme disease infections by killing black-legged ticks. It also kills lone star ticks, American dog ticks, brown dog ticks, and longhorned ticks.

In a well-controlled laboratory study, NexGard® chews began to kill fleas 4 hours after initial administration and demonstrated >99% effectiveness at 8 hours.2

Adult fleas – the ones that you see on an infested pet – make up only ~5% of the total flea population. The developing stages (flea eggs, larvae, and pupae) make up the other 95%. These developing stages can be found anywhere an infested animal spends time. Commonly infested animals, which spread flea eggs throughout their surroundings, include untreated pets, feral cats, opossums, coyotes, etc.3

NexGard® chews are safe for dogs and puppies as young as 8 weeks, weighing 4 pounds or more.

Each NexGard® chew protects your dog from fleas & ticks for one full month. It is important to ensure that your dog receives one NexGard chew each month to keep it protected all year long.

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Discount Prescription Guide
Powered by Costco Health Solutions. Costco Member Prescription Program (CMPP) is a direct-to-members savings program administered by Costco Health Solutions, Inc. and Ventegra Inc. Participating pharmacies are subject to change without notice and are not available in all areas. CMPP is not insurance or intended as a replacement for insurance. Claims submitted for coverage under publicly funded programs (e.g. Medicare, Medicaid, etc.) or private insurance are not eligible for CMPP participation. Shipping and handling cost are not included in the price. Costco Health Solutions, Inc. 845 Lake Drive Issaquah, WA 98027 https://www.costcohealthsolutions.com/. Data on file at Boehringer Ingelheim https://docs.boehringer-ingelheim.com/AH/NexGard_Mono_PI.pdf Dryden M. Biology of fleas of dogs and cats. Compend Contin Educ Vet. 1993(4):569-579.