Interceptor Plus Chew [Interceptor Spectrum] for Dogs 8.1-25LBS [Green] eliminates immature heartworms and prevents heartworm disease. It controls adult roundworms, whipworms, hookworms, and tapeworms. This treatment gives protection for one month. Only one chew gives protection against 5 types of worms. Buy worming treatment and give extra protection to your dog. Get free shipping and start earning rewards. Get an extra 10% off with auto-order and up to 20% off on your next order. Apply Coupon Code: SUMR10