Catty1,

I would NOT recommend Amitryptiline. My vet told me that while it's approved for dogs, it is not approved for cats as it makes them irritable and lethargic. I know because I tried it (years ago) on RB Casey. That was the exact result I got. He was being tormented by one of my other cats, Tucker, who I rehomed. He's living the life of Riley with my friends in a 3 story victorian house. I have visitation. He's wonderful.