Mousex (r) has a number of advantages that make it an excellent choice for efficient, effective and environmentally friendly rodent extermination. aside from its overall efficacy and humane rodent killing process, mousex (r) pellets are also completely non-toxic and 100% safe for people, pets, livestock and wildlife. mousex (r) is even safe to birds of prey with no risk of secondary kill. mousex (r) is a specially formulated rodent food mix that, once ingested, gradually and humanely kills rats and mice.