Steiner et al., 1998: 286 [ 3 ]

“S-fluoxetine, the long acting S-enantiomer of fluoxetine, is worth more formal evaluation in migraine prophylaxis, notwithstanding that (or perhaps especially because) racemic fluoxetine may be inactive”

NOTE: Supported by a pharmaceutical company producing fluoxetine and planned as a phase II study which would be followed by a pivotal phase III study if the outcome was encouraging

Tarlaci, 2009: 254 [ 4 ]

“According to our findings, venlafaxine and escitalopram are both effective in the prophylaxis of migraine without depression and anxiety. This effect was independent of mood disorder”