Trifexis 20.1-40 lbs for Dogs, 6 Chewable Tablets by EntirelyPets Pharmacy

Trifexis from Elanco is a preventative heartworm medication and flea killer. The Trifexis formula also prevents flea infestation and hookworm and roundworm infections. This monthly medication comes in a beef-flavored tablet that your dog is sure to love.