Was skeptical, believer now!
After 18 months of living here, a rescue cat (arrived as a kitten) became laser focused on the oldest cat who didn't take to this behavior as she began to use the kitchen rug as her litter box. She was being stalked and it wasn't pleasant. After all medical possibilities were ruled out, Prozac was prescribed but there is a 4-6 week "loading" period. I decided to give Feliway a try and order 3 plug ins. I have to say, while it didn't completely correct the issue, it definitely helped as the other household cats were becoming stressed with the other two being upset. Even though we are at the 6-week mark and the Prozac is working, I will continue to use the plug ins as. even though it is a ceasefire, it is an uneasy truce at times.