Feliway Classic Refill 48mlFeliway Classic Refill 48ml Cat Feliway Classic is a clinically proven solution to help comfort and reassure your cat at home. It works by mimicking calming messages that cats naturally release in the air called pheromones. These messages help cats and kittens adjust to changes in their environment, feel comfortable in a new home and avoid unwanted behaviours like urine spraying, scratching and hiding. Trusted by veterinarians and pet owners worldwide