bupropion (Wellbutrin) helps with migraines

http://www.guideline.gov/summary/summary.aspx?ss=15&doc_id=6580&nbr=4140

Nontricyclic antidepressants, such as the selective serotonin reuptake inhibitors (SSRIs) and venlafaxine and bupropion, have no established efficacy in migraine prevention. However, they are included among the agents found to be effective through clinical experience, and they can be particularly helpful in the presence of comorbid anxiety or mood disorders. Common adverse events include sedation or insomnia, nausea, and sexual dysfunction.