Feliway is based on Pheromonatherapy, which is a new way to manage behavior problems in animals. It is an innovative and natural solution to stress related problems in cats and dogs. This supplement is for animal use only. Keep out of reach of children and other animals. In case of accidental overdose, contact a health professional immediately. Consult with your veterinarian before using this product. Due to the personal nature of this product, we are unable to accept returns.