Clonazepam
"This is very good medicine for panic and anxiety. Sometimes it is necessary to check for depression. I was taking it for about 8 years and slowly reduced and stopped. I reduced it to 0.25mg first for a week, then 0.125mg next week, then alternate days and then I used to have a tab or so and take only when necessary. It is necessary to learn to avoid anxiety to drop this medicine. 

"