Nexgard is a beef-flavored, monthly chewable that efficiently prevents and eliminates fleas and ticks on dogs. These yummy chews treat 4 kinds of tick species -- American dog ticks, Black-legged ticks, and Brown dog ticks and also may be used on puppies which are over 8 months old. The chew functions for one full month and also prevents canines from deadly tick-borne diseases.

Nexgard, merchandise by Merial is the very best flea and tick preventative therapy that has Afoxolaner -- an insecticide and an acaricide. This active ingredient works to the central nervous system of the parasite causing hyperactivity. This finally results in the death of the parasite.