Take $10 off with code NEW8102 when you spend $49 or more at 1-800-PetMeds.com. Choose from items sitewide with their current sale, which discounts everything up to 32%. That makes for a great price on this K9 Advantix II Flea Medicine. The 6-mo. supply for an over 55-pound dog (blue), already reduced from $87.48 to $66.23, drops to $56.23 with the code. That's $7 less than we found it anywhere else. Check out the medications and supplies you need and enjoy free shipping over $39. Sales tax may be charged in some states.