Regular monthly dosing with Interceptor protects against all nasty worm types:HeartwormRoundwormWhipwormHookwormTapewormRegular monthly dosing with Interceptorâ„¢ protects against heartworm in dogs and puppies as young as 2 weeks of age, plus prevents infestation from intestinal worm, including roundworm, whipworm and hookworm. Importantly Interceptor also protects against Hydatid tapeworm which is potentially lethal to humans.Giving tablets to dogs can be frustrating, however, ..