Feliway provides an effective way to control and manage unwanted feline behaviors such as urine marking, scratching, stress and anxiety. Creating a calming effect, it is very useful for cats in new environments. One vial lasts approx 4 weeks, covering an area of up to 650 feet. Feliway mimics the facial pheromones produced by cats, resulting in an emotional calming, which reduces a cat's impulse to mark its territory. Treatment should continue for 30 days, by which time markings should cease. If they haven't, continue with treatment every 2-3 days thereafter. To prevent scratching, Feliway should be sprayed once per day on areas of surfaces that the cat finds attractive.