Here's why:
* Different formulations: Frontline for cats and dogs have different concentrations of the active ingredient (fipronil). Using the wrong formulation can lead to severe health problems in your dog.
* Toxicity: The concentration of fipronil in Frontline for cats is much higher than in Frontline for dogs. Giving it to a dog can cause poisoning, leading to symptoms like tremors, seizures, and even death.
Always consult your veterinarian before using any flea and tick medication on your pet. They can recommend the safest and most effective treatment for your dog's specific needs.