I found this through a google search. Old thread sorry. I'm not sure if I'm in denial or what but I had a feliway diffuser plugged in with my foster kittens 9 months ago, my kitten I decided to keep had a platelet count of 8,000, got put on 5mg prednisolone and on his way. I unplugged the diffuser. A week later his platelets tested normal and was given 6 months to stay on steroids. Its 6 months now and I decided to plug in the feliway to try to help my other cat who is cranky..its been plugged in about 4 days now and my kittens blood work came back the first time in every month platelets were tested and they're at 12,000. I unplugged it and threw it away. I am bringing him in in a few days to retest them.