FELIWAY is an environmental spray containing analogues of naturally occurring facial pheromones that control feline urine marking. Observations have indicated that cats do not leave urine marks on objects previously marked with facial pheromones. Feline urine marking is a natural habit of both male and female cats. By spraying small quantities of urine on vertical surfaces, the cat provides a pheromonal indication of its presence to other cats. Recognized by many cat owners, the main courses of action to combat urine marking have been limited. FELIWAY provides a natural and comforting way to control cat urine marking.