Simparica Chewable is an adult flea-killing chewable for dogs that is advised for the treatment and prevention of flea infestations. Simparica Chewable is the only oral medication that offers thorough defence against five different tick species, including American dog ticks, Lone star ticks, Gulf Coast ticks, Brown dog ticks, and Black-legged ticks in 6 months, as well as older dogs weighing 2.8 lbs or more. Buy Now for 2.8-5.5 lbs Dogs(Yellow) with Free Shipping..