Feliway spray 60ml is a pheromone releasing spray which can be used to help your cat stay calm and cope with environmental changes it is easy to use and lasts for up to 24 hoursr how does feliway spray workr happy cats tend to run their heads against furniture or walls and leave behind a substance called facial pheromonesr feliway sprays mimic this pheromone in a synthetic copy which is scientifically proven to help reassure and comfort cats it releases pheromones that help your cat feel sa