We found no clear evidence that paroxetine was more or less effective compared with other antidepressants at increasing response to treatment at acute ( six to 12 weeks ) , early ( one to four weeks ) , or longer term follow-up ( four to six months ) .
Paroxetine was associated with a lower rate of adverse events than amitriptyline , imipramine and older ADs as a class , but was less well tolerated than agomelatine and hypericum .
Some possibly clinical ly meaningful differences between paroxetine and other ADs exist , but no definitive conclusions can be drawn from these findings .
In terms of early response to treatment ( one to four weeks ) there was moderate quality of evidence that mirtazapine was better than paroxetine and that paroxetine was better than reboxetine .
However there was no clear evidence that paroxetine was better or worse compared with other antidepressants at increasing response to treatment at any time point .
BACKGROUND Paroxetine is the most potent inhibitor of the reuptake of serotonin of all selective serotonin reuptake inhibitors ( SSRIs ) and has been studied in many r and omised controlled trials ( RCTs ) .
However , these comparative studies provided contrasting findings and systematic review s of RCTs have always considered the SSRIs as a group , and evidence applicable to this group of drugs might not be applicable to paroxetine alone .
The present systematic review assessed the efficacy and tolerability profile of paroxetine in comparison with tricyclics ( TCAs ) , SSRIs and newer or non-conventional agents .
OBJECTIVES 1 .
To determine the efficacy of paroxetine in comparison with other anti-depressive agents in alleviating the acute symptoms of Major Depressive Disorder.2  .
To review acceptability of treatment with paroxetine in comparison with other anti-depressive agents.3 .
To investigate the adverse effects of paroxetine in comparison with other anti-depressive agents .
Clinical experience with substance P receptor (NK1) antagonists in depression.
Substance P ( SP ) belongs to the neurokinin ( NK ) family of neuropeptides and exerts its biological effects via interaction with the NK1 receptor . The SP-NK1 receptor system is one of the best-characterized neurotransmitter pathways in both the central and peripheral nervous systems . It has been postulated that this pathway may have important roles in a variety of central ly regulated pathophysiologic conditions , including depression . In animal models , central injection of SP was associated with a series of anxiety-like behaviors , and this response could be abolished by pretreatment with SP ( NK1 ) receptor antagonists ( SPAs ) . On the basis of these and other encouraging pre clinical results , several clinical trials have examined the potential of SPAs in the treatment of depression . In phase 2 trials , therapy with the SPAs aprepitant ( MK-0869 ) and compound A result ed in improvements in depression and anxiety symptoms that were quantitatively comparable with those seen with selective serotonin reuptake inhibitors ( SSRIs ) and significantly greater than those seen with placebo . These positive results have established a proof of concept that the inhibition of the SP-NK1 receptor pathway may be a potentially useful novel treatment option for management of patients with depression .  The apparent lack of benefit with SPAs versus placebo in subsequent dose-finding studies with aprepitant and compound A is not surprising , considering the fact that the outcomes with an active control ( SSRI ) in these trials were also similar to those observed with placebo . Future trials with SPAs will focus on the identification of appropriate patients and drug regimens and will also define the role of these agents in the treatment of depression
We found no clear evidence that paroxetine was more or less effective compared with other antidepressants at increasing response to treatment at acute ( six to 12 weeks ) , early ( one to four weeks ) , or longer term follow-up ( four to six months ) .
Paroxetine was associated with a lower rate of adverse events than amitriptyline , imipramine and older ADs as a class , but was less well tolerated than agomelatine and hypericum .
Some possibly clinical ly meaningful differences between paroxetine and other ADs exist , but no definitive conclusions can be drawn from these findings .
In terms of early response to treatment ( one to four weeks ) there was moderate quality of evidence that mirtazapine was better than paroxetine and that paroxetine was better than reboxetine .
However there was no clear evidence that paroxetine was better or worse compared with other antidepressants at increasing response to treatment at any time point .
BACKGROUND Paroxetine is the most potent inhibitor of the reuptake of serotonin of all selective serotonin reuptake inhibitors ( SSRIs ) and has been studied in many r and omised controlled trials ( RCTs ) .
However , these comparative studies provided contrasting findings and systematic review s of RCTs have always considered the SSRIs as a group , and evidence applicable to this group of drugs might not be applicable to paroxetine alone .
The present systematic review assessed the efficacy and tolerability profile of paroxetine in comparison with tricyclics ( TCAs ) , SSRIs and newer or non-conventional agents .
OBJECTIVES 1 .
To determine the efficacy of paroxetine in comparison with other anti-depressive agents in alleviating the acute symptoms of Major Depressive Disorder.2  .
To review acceptability of treatment with paroxetine in comparison with other anti-depressive agents.3 .
To investigate the adverse effects of paroxetine in comparison with other anti-depressive agents .