I only have one dog and two cats, but I have read from yt members that it takes time, for them to warm up, it work with my cats and Pheobe, my female cat (she think she is a diva), she tolerate Pheobe, my male is more nicer than her, just be patient, but make sure she is drinking and eating, keep the eye on her, or talk to the vet, just to make sure she is not sick.