NexGard for dogs and puppies kills adult fleas and is indicated for the treatment and prevention of flea infestations (Ctenocephalides felis) and the control of tick infestations, including Ixodes scapularis (black-legged tick), helps prevent infections that cause Lyme disease, Dermacentor variabilis (American dog tick), Amblyomma americanum (lone star tick), Rhipicephalus sanguineus (brown dog tick), and Haemaphysalis longicornis (longhorned tick), and preventing fleas from laying eggs and multiplying. Use NexGard flea and tick chews for dogs older than 8 weeks and weighing 4 lb. or more.

How it Works

NexGard (afoxolaner) contains afoxolaner which is absorbed into the bloodstream after ingestion. When fleas and ticks ingest blood containing afoxolaner, it causes hyperexcitation and death in these parasites.

Special Precautions

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. References: 1. Data on file at Boehringer Ingelheim. 2. Data on file at Boehringer Ingelheim. 3. Data on file at Boehringer Ingelheim

Overdose Information

In case of NexGard overdose, contact the closest emergency animal hospital.

Side Effects

The most frequently reported adverse reactions include vomiting, itching, diarrhea, lethargy, and lack of appetite. The safe use of NexGard in pregnant, breeding, or lactating dogs has not been evaluated. It should be used with caution in dogs that have a history of seizures or other neurologic disorders, speak with your veterinarian about using NexGard for your dog. NexGard can be used with other treatments, such as vaccines, antiparasitic drugs, antibiotics (including topicals), nonsteroidal anti-inflammatory drugs (NSAIDs), steroids, antihistamines, and anesthetics. Discuss any medications and supplements your dog is taking with your veterinarian if you have specific questions about using NexGard for your dog.

Storage

Store at or below 30°C (86°F) with excursions permitted up to 40°C (104°F).

The U.S. Food and Drug Administration (FDA) has issued an Emergency Use Authorization (EUA) for the emergency use of the approved product NexGard (afoxolaner) for the treatment of infestations caused by New World Screwworm (Cochliomyia hominivorax) larvae (myiasis) in dogs and puppies. To learn more about the NexGard EUA, please see the authorization form in the Product Documents section.

Looking for more information on flea and tick control? Check out our flea and tick control buying guide in the product documents section.