I got this to try. My cats companion of 14 years had passed away suddenly. We were left with a distressed and yowling cat for weeks and weeks, she didn’t want to be with us but in her basket alone, which was not like her. We tried feliway and it helped only slightly. We tried pet remedy plug in and it’s taken about 10 days but now we have our purry cuddly girl back again! She is still yowling but only a little. I can not smell it but she goes up to it at least once a day and sniffs it. I think it helped!