Amitriptyline has been more frequently studied than the other antidepressants and is the only one with consistent support for efficacy in migraine prevention (75 - 77). The dosages that were most efficacious in the clinical trials ranged from 30 to 150 mg/d. Drowsiness, weight gain, and anticholinergic symptoms were frequently reported with the tricyclic antidepressants studied, including amitriptyline. There is no evidence for the use of nortriptyline, protriptyline, doxepin, clomipramine, or imipramine. There is limited evidence of a modest effect for fluoxetine at dosages ranging from 20 mg every other day to 40 mg per day (78 - 79). There is no evidence from controlled trials for the use of fluvoxamine, paroxetine, sertraline, phenelzine, bupropion, mirtazapine, trazodone, or venlafaxine.