Cognitive function and efficacy analysis (pain relief) will be calculated on the intent-to-treat (ITT) population. Statistics will be presented for headache response (0-3 scale), pain-free response, safety and demographics. Five subsets of MEWT will be used (CPT, MTS, MP, PRT and SRT -see Table 1). Four of the subset tests of the MEWT (CPT, MTS, MP, and PRT) will be scored for 'throughput,' which is the number of correct responses per minute. This is a measure of efficacy that combines both speed and accuracy in a single score. SRT will be calculated for reaction time in msec. Group means will be calculated from each patient's mean for each MEWT subtest and compared to each stage of the migraine: migraine-free, migraine pre-treatment (time zero) and migraine post-treatment (time 1 and 2 hours). Each MEWT subtest will be calculated using a repeated measure 1 x 3 (each stage of migraine: migraine free, pre and post-treatment) by analysis of variance (ANOVA) for statistical significance of at least p = 0.05 or better.