Walmart sells a 3 pack of PetAction Plus for $24.83 and there is a $3.00 off Any One (1) PetAction™ Plus Product making it $21.83 for 3 doses It has the same ingredients as Frontline! PetAction Plus for Dogs provides protection with the same two active ingredients, Fipronil and S-Methoprene, in the same concentration as Frontline Plus for Dogs. Why pay more at the vet? PetAction View Post