What are the side effects of flea and tick medication for dogs?
Linnea Bechtelar
2025-08-05 04:06:18
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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. The FDA is alerting pet owners and veterinarians of the potential for neurologic adverse events in dogs and cats when treated with drugs that are in the isoxazoline class. If your dog or cat experiences any adverse event while using an isoxazoline product, first consult your veterinarian. The FDA continues to monitor adverse drug event reports for these products and encourages pet owners and veterinarians to report adverse drug events. Isoxazoline products are approved for the treatment and prevention of flea infestations, and the treatment and control of tick infestations. Some are also approved for treatment and control of ear mite infestations and some gastrointestinal parasite infections, and a few are also approved for prevention of heartworm disease.
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