The past decade has witnessed the advent of selective serotonin reuptake in
hibitors (SSRIs) as first-line treatments for major depression. Still, ther
e is considerable debate as to whether these agents are as effective or as
potent as the first-generation tricyclic antidepressants (TCAs) or the mixe
d reuptake inhibitor. venlafaxine, all of which exert considerable effect o
n norepinephrine (NE) reuptake. Recently, reboxetine, a selective NE reupta
ke inhibitor (selective NRI), has been introduced in Europe. This drug has
only a minimal affinity for muscarinic acetylcholine receptors and therefor
e causes less dry mouth, constipation, or other such effects than do the TC
As. Reboxetine does not block serotonin reuptake or alpha(1) receptors and,
thus, does not appear to produce significant nausea, diarrhea, or hypotens
ion. Unlike other antidepressants, reboxetine appears to be nonsedating. Da
ta on acute and long-term clinical efficacy and safety from double-blind, p
lacebo-controlled, and active comparator studies with reboxetine are review
ed. These studies indicate that reboxetine is significantly more effective
than placebo and as effective as fluoxetine in reducing depressive symptoms
. Improvements in social adjustments were reported to be more favorable wit
h reboxetine than with fluoxetine. Further, data from controlled clinical t
rials have shown that the side effect profile for reboxetine is relatively
benign. The clinical implications of studies on reboxetine are discussed wi
th an eve toward understanding the potential role NE reuptake blockers may
play in the treatment of patients with major depression.