/b/veterinary-news/posts/ceva-launches-new-flea-and-tick-spot-on-for-cats-and-dogs Ceva Animal Health has launched Duoflect, a new spot on for the treatment and prevention of flea and tick infestations in cats and dogs and their environment. Duoflect contains a new formulation of fipronil and (s)-methoprene which, according to theen-USTelligent Community 10