Several reports suggest that selective serotonin reuptake blockers are
helpful in the treatment of panic disorder. The aim of the study was
to compare fluvoxamine with placebo in 50 panic disorder patients by u
sing an 8-week, double-blind, parallel-groups design. Weekly assessmen
t included a panic attack diary (frequency and severity), the Montgome
ry-Asberg Depression Scale, the Clinical Anxiety Scale, and the Sheeha
n Disability Scale. Although both groups improved on all measures, the
fluvoxamine group experienced significantly less frequent major panic
attacks from the third week on and significantly lower ratings on anx
iety, depression, and disability from the sixth week on. Mean ratings
of the severity of major and the severity and frequency of minor attac
ks were not affected differently by fluvoxamine and placebo. At the en
d of the study, significantly more patients on fluvoxamine were free o
f major and minor panic attacks. The results indicate that: (1) the ad
ministration of fluvoxamine, as compared with placebo, led to a signif
icant reduction in the number of panic attacks. (2) The severity of pa
nic attacks was not affected by fluvoxamine. (3) The effect of fluvoxa
mine on anxiety, depressive mood, and disability differed from placebo
only after 6 weeks of treatment, after which the placebo group showed
either no further improvement or a reversal of symptoms. (4) Particip
ation in a drug study, even without additional psychotherapy, led to s
ignificant improvement in all patients.