Advocate for dogs is a single break-through remedy for treating multiple parasites. It affects re-infesting fleas within 3 to 5 minutes after its application and dismisses re-infesting adult fleas within 1 hour. This topical solution also aids in the prevention of flea allergy dermatitis. It is also capable of preventing heartworm disease in dogs along with controlling a vast range of gastrointestinal worms in dogs. Buy best flea and tick control products online at DiscountPetCare with free shipping.