Two studies compared SSRIs or SNRIs versus amitriptyline and found no evidence for a difference in terms of migraine frequency ( st and ardised mean difference ( SMD ) 0.04 , 95 % confidence interval ( CI ) -0.72 to 0.80 ; I(2 ) = 72 % ) , or other secondary outcomes such as migraine intensity and duration .SSRIs  or SNRIs were generally more tolerable than tricyclics .
Since the last version of this review , the new included studies have not added high quality evidence to support the use of SSRIs or venlafaxine as preventive drugs for migraine .
There is no evidence to consider SSRIs or venlafaxine as more effective than placebo or amitriptyline in reducing migraine frequency , intensity , and duration over two to three months of treatment .
Our conclusion is that the use of SSRIs and SNRIs for migraine prophylaxis is not supported by evidence
BACKGROUND This is an up date d version of the original Cochrane review published in 2005 on selective serotonin reuptake inhibitors ( SSRIs ) for preventing  migraine and tension-type headache .
Another up date d review is under development to cover tension-type headache .
Migraine is a common disorder .
The chronic forms are associated with disability and have a high economic impact .
In view of discoveries about the role of serotonin and other neurotransmitters in pain mechanisms , selective serotonin reuptake inhibitors ( SSRIs ) and serotonin-norepinephrine reuptake inhibitors ( SNRIs ) have been evaluated for the prevention of migraine .
OBJECTIVES To determine the efficacy and tolerability of SSRIs and SNRIs compared to placebo and other active interventions in the prevention of episodic and chronic migraine in adults .
Selective serotonin reuptake inhibitors for migraine prophylaxis.
The objective of this study was to assess the efficacy of sertraline in migraine prophylaxis . Other selective serotonin reuptake inhibitors have been studied for migraine prophylaxis , but this is the first report with sertraline .  Twenty-seven subjects were enrolled and baseline assessment of migraine frequency and severity were measured over a 4-week period . Subjects were then r and omized to receive placebo or sertraline in a double-blind fashion with headache frequency and severity measured over an 8-week period . Subjects completed a daily diary reporting the occurrence , severity , and degree of impairment associated with migraine . The headache index , a composite measure of migraine frequency and severity , scores did not significantly improve between assessment s at baseline ( 20.8 + /- 14.88 ) , 8 weeks ( 17.6 + /- 12.27 ) , and 12 weeks ( 16.7 + /- 6.38 ) in the treatment group ( n=6 ) ( P=0.956 ) . This finding is compared to other studies with the serotonin selective reuptake inhibitors , fluoxetine , fluvoxamine , and paroxetine . The authors believe that the selective serotonin reuptake inhibitors are not as effective as conventional migraine prophylaxis medications such as beta-blockers , tricyclic antidepressants , or divalproex sodium , but that in patients with comorbid depression who have failed conventional therapy selective serotonin reuptake inhibitors may be effective
Two studies compared SSRIs or SNRIs versus amitriptyline and found no evidence for a difference in terms of migraine frequency ( st and ardised mean difference ( SMD ) 0.04 , 95 % confidence interval ( CI ) -0.72 to 0.80 ; I(2 ) = 72 % ) , or other secondary outcomes such as migraine intensity and duration .SSRIs  or SNRIs were generally more tolerable than tricyclics .
Since the last version of this review , the new included studies have not added high quality evidence to support the use of SSRIs or venlafaxine as preventive drugs for migraine .
There is no evidence to consider SSRIs or venlafaxine as more effective than placebo or amitriptyline in reducing migraine frequency , intensity , and duration over two to three months of treatment .
Our conclusion is that the use of SSRIs and SNRIs for migraine prophylaxis is not supported by evidence
BACKGROUND This is an up date d version of the original Cochrane review published in 2005 on selective serotonin reuptake inhibitors ( SSRIs ) for preventing  migraine and tension-type headache .
Another up date d review is under development to cover tension-type headache .
Migraine is a common disorder .
The chronic forms are associated with disability and have a high economic impact .
In view of discoveries about the role of serotonin and other neurotransmitters in pain mechanisms , selective serotonin reuptake inhibitors ( SSRIs ) and serotonin-norepinephrine reuptake inhibitors ( SNRIs ) have been evaluated for the prevention of migraine .
OBJECTIVES To determine the efficacy and tolerability of SSRIs and SNRIs compared to placebo and other active interventions in the prevention of episodic and chronic migraine in adults .