Iverhart Max is a onceamonth liverflavored chewable that protects against a staggering amount of worms from heartworm to roundworm hookworm flatworm and tapeworm Killing both developing and adult heartworms Iverhart Max stops the heartworm life cycle in its tracks Having a number of different deworming medications working together this medication will put a stop to anything slinking around inside your dog Safe for use in puppies eight weeks and older and six pounds and up start yours on Iverhart Max todayOther products from PetCareRx