This article addresses the diagnosis and pharmacologic treatment of hy
pochondriasis. Diagnostic issues are reviewed briefly, focusing on the
need for a thorough medical re-consideration of the patient's present
ing symptoms. Because the diagnosis rests on the absence of a medical
cause to account for the presence or intensity of the physical symptom
s, neither self-report forms nor non-medically trained interviewers sh
ould be used to definitively make the diagnosis of hypochondriasis. We
review the case reports and small uncontrolled series on the pharmaco
logic treatment of hypochondriasis, emphasizing the growing body of ev
idence suggesting particular efficacy for the serotonin reuptake inhib
itors. Preliminary results from an ongoing placebo-controlled trial of
hypochondriasis using fluoxetine are presented. While the controlled
trial supports the open treatment data in revealing a high rate of imp
rovement among patients completing treatment with fluoxetine, it also
demonstrates that many patients respond to placebo as well. In conclus
ion, although the traditional nihilistic attitude regarding the possib
ility of successful treatment of hypochondriacs appears no longer warr
anted, the question remains open as to whether SSRIs have particular e
fficacy in patients with hypochondriasis or whether nonspecific treatm
ent effects are the primary cause of improvement.