The article is to examines the relationship between panic attacks, panic disorder, & suicidal ideation among primary care patients. A probability sample of primary care attenders from a large urban university practice was assessed for current mental disorders & suicidal ideation. Patients with either panic attacks or panic disorder had significantly increased risks of suicidal ideation, which was also highly associated with major depression & comorbid panic disorder or panic attacks. Implications are discussed. (15 refs)