From what I know, anxiety disorders are best cured not with medicine persay, but with therapy to get to the root of what
causes your anxiety and helping you work through those issues. Sure, the doctors can just hook you up on some pills that turn you into a walking vegetable, always zoned out... but who wants THAT?
That's not to say a milder medicine can help you to relax a LITTLE so that therapy can be successful. It's really learning to combine medication and therapy to get the best results.