K9 Advantix Medium Dogs 11-20 LBS [Aqua] prevents multiple parasites, including fleas, ticks, chewing lice, insects, and mosquitoes. It controls Flea Allergy Dermatitis [FAD] and kills fleas before they can lay eggs, thus preventing re-infestations. This treatment repels parasites for one month. Prevent Lyme disease and get free shipping + rewards. Save up to 10% with auto-order and up to 20% on your next order. Apply Coupon Code: SUMR10