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FDA Issues Chewable flea and tick medication alert for pet owners

(KRON) - The Food and Drug Administration issued an alert to pet owners about certain chewable flea and tick medication that can cause neurological problems like seizures and stumbling.

The FDA says certain chewables for dogs and cats contain a pesticide called isoxazoline. Pet owners should talk to their veterinarians about the medication.

The brands that are in question by the FDA are Bravecto, Credelio, Nexgard, as well as Simparica. 

The FDA says you should know the following:

  • The FDA considers products in the isoxazoline class to be safe and effective for dogs and cats but is providing this information so that pet owners and veterinarians can take it into consideration when choosing flea and tick products for their pets.
  • Isoxazoline products have been associated with neurologic adverse reactions, including muscle tremors, ataxia, and seizures in some dogs and cats;
  • Although most dogs and cats haven’t had neurologic adverse reactions, seizures may occur in animals without a prior history;
  • Many products are available for prevention and control of flea and tick infestations. You can discuss all options with your veterinarian to choose the right product for your pet.


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