This study assessed the naturalistic long-term course of panic disorder in 24 patients who participated in a multicenter drug trial in Vienna over an 11-year period. 66.7% had no panic attack during the year before the follow-up. The participants reported no suicide attempts over the 11-year period. The authors conclude that these results indicate that panic disorder is not a uniformly chronic & progressing disorder. Over a period of 11 years there is a good chance of recovery from panic attacks & disabilities, & full remission is possible. (19 refs) (SC)