Overview A Study to Measure the Safety and Effectiveness of Zonisamide in Subjects With Migraine Headache Status: Completed Trial end date: 2003-05-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if zonisamide is effective as a preventative medication for individuals with migraine headache. Phase: Phase 2 Details Lead Sponsor: Elan PharmaceuticalsTreatments: Zonisamide