The pharmacological management of migraine, part 2: preventative therapy.

if they are experiencing two or more migraines per week, if their attacks last more than 48 hours, or if they have ineffective responses or contraindications to abortive therapy.1–5 Although numerous medications are used in the management of migraine (Table 1), the commonly used agents that have been studied and that have reported efficacy include the beta blockers, the tricyclic antidepressants, and some anticonvulsants.1