Interceptor Plus Chew for Dogs 50.1-100LBS [Blue] protects your dogs against 5 major intestinal worms. This treatment prevents heartworm and eliminates the immature forms of heartworm. It controls adult hookworms, adult whipworms, adult roundworms, and adult tapeworms. Shop Allwormers online. Earn rewards and get free shipping. Save an extra 10% with auto-order. Use Coupon: SUMR10