I have taken 2 pills 0.5mg every night for the last 34 years. Back in the early 80s, no one knew what I had many times I was in the hospital with fake heart attacks I was given Xanax, Valum, and prosaic lithium nothing worked luckily I met a Phytrist who said I inhered from my mother this panic gene. It was so bad I could not get out of bed I was always afraid to go out in public in fear of attack. Worse no one knew what I had. God bless my Physiatrist who said to take Clonpin 3x a day I did not believe him at first but as my panic disappeared I felt good for the first time in years I could work and go out in public. I offered him $$ for his help he refused. Dr O Rouk from Mass General Hospital 1989. Long story but all true. dan