I know there is a lot of controversy over this and people recommend against sedation for cats when flying. I have a very very vocal himmie who I wil be on a long flight with. When we are in the car, he meows constantly. He has never been on a plane before and I don't want to stress him out too much. Is there something I can give him just to take the edge off? I talked to vet and he wrote us something. But I'm wondering if maybe a little benadryl would work? Anyone have any suggestions? I don't want him to be very sleepy just not so hypervigivilant. Any suggestions would be helpful.