To learn more about NexGard® (afoxolaner) Chewables or to report suspected adverse events, write or call us. Thanks.

  • Merial, Inc.
    3239 Satellite Blvd., Building 500
    Duluth, GA 30096-4640
  • Merial Customer Service
    1.888.637.4251 (opt. 3)
    Monday–Friday, 8 AM–6 PM (ET)


Reported side effects include vomiting, itching, diarrhea, lethargy 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. See your veterinarian for more information.