As you know I adopted a 14 years old stray cat. He has to stay in a cat run completely furnished (3 shelters, one is permanently warm, cat tree, high quality dry and wet food, cat friendly plants ....). He still looks really down and it makes me cry. He was dumped on an university campus when he was 4 and was only rescued in May of this year. I talk to him, I try to play but he’s not interested. Is there something I could give him to cheer him up? An antidepressant maybe?