This study is a 12-week, open-label pilot study to test the effects of MMFS-201-301 on
cognition and function in adults with ADHD. Subjects may enter the trial on a stable dose of
medication for ADHD, and MMFS-201-301 will be given. Subjects who do not enter on a stable
dose of ADHD medication will receive MMFS-201-301 alone.