I purchased this product a week ago because it was suggested to help calm my cats. Since I purchased it, 2 of my healthy cats died.Is there something I need to know about this product?
More likely you have a toxic plant in your home, which the cats have tried munching on. Or you let them outside and there are toxic plants they found access to. It is amazing how many common plants are very toxic to cats, and they love to chew plants so it is a significant hazard.
Yes, being outside is extremely hazardous. Keeping a cat inside and away from mouse-killing products and plants will let them live a lot longer. Diseases such as distemper, etc. can also be easily contracted outside, many can be carried in on your shoes. People usually only get Feliway when their cats are very agitated or disrupted by some big event, was there a reason for getting it?