no offense, but advantage is crap. if you want to get something good for ticks/fleas only, use fronline. but i use sentinal and capstar. sentinal kills roundworm, hookworm, whipworm, fleas, ticks, and heartworm. the capstar goes along with it by killing the larval stage as well as the adult stage. you use that every day for 3 days, and then every other day, and you will be fea free! these are safe and important to use on pregnant and lactating bitches. hope this helps!