Hypochondriasis without concomitant depression is often considered to
be unresponsive to pharmacotherapy. Given marked similarities between
hypochondriasis and obsessive-compulsive disorder, we decided to condu
ct an open trial of high-dose fluoxetine for patients with DSM-III-R h
ypochondriasis who did not meet criteria for major depression. Ten of
16 patients were much improved at the end of 12 weeks. A comparison of
baseline and week 12 scores by the use of a paired-samples t-test rev
ealed a statistically significant reduction in hypochondriacal concern
s, as measured by the Heightened Illness Concern Clinical Global Impre
ssion Severity scale, the Whiteley Index of Hypochondriasis, and the H
eightened Illness Concern Questionnaire. These results suggest that fl
uoxetine may be a useful therapy for hypochondriacal patients without
marked depressive features-a group previously considered to be treatme
nt refractory.