Advocate is a high-end product to control different parasitic infections in cats. This once a month topical solution treats heavy flea infestation and prevents re-infestation. It acts as the best prevention treatment for heartworm disease in cats. The easy to apply solution treats and controls fleas, ear mites, hookworms and roundworms, and protects cats from their harmful effects. Get the best pet supplies online with free shipping online at VetSupply