Three Doses of Lasmiditan (50 mg, 100 mg and 200 mg) Compared to Placebo in the Acute Treatment of Migraine

Participants will be asked to treat a migraine attack with study drug on an outpatient basis. Participants will be provided with a dosing card containing a dose for initial treatment and a second dose to be used for rescue or recurrence of migraine. Each participant's study participation will consist of screening (Visit 1) with a telephone contact within 7 days to confirm eligibility, a Treatment Period of up to 8 weeks, and End-of-Study (EoS) (Visit 2) within one week (7 days) of treating a single migraine attack. The total time on study is approximately up to 11 weeks.