Inuniv and Working Memory

Inclusion Criteria: 1.Meet DSM-IV criteria for ADHD, combined, inattentive, or hyperactive/impulsive subtype, as evidenced by minimum score of 24 on the ADHD-RS-IV at baseline * 2 Outpatient status * 3\. Age 8-12 (inclusive) at baseline * 4\. Males or Pre-menarchal females * 5\. English-speaking parent and subject * 6\. If on stimulant medication, has demonstrated sub-optimal response to treatment ad is willing to be washed out (discontinued) from stimulant * 7\. Intellectual capacity to provide assent, as deemed by the Principal Investigator * 8\. No known cardiac history, including bradycardia, heart block, syncope or tachycardia * 9\. No known history of hypotension or hypotension at baseline * 10\. Willing to provide informed consent/ assent per IRB protocol Exclusion Criteria: * • 1.Meet DSM-IV criteria for ADHD, combined, inattentive, or hyperactive/impulsive subtype, as evidenced by minimum score of 24 on the ADHD-RS-IV at baseline * 2 Outpatient status * 3\. Age 8-12 (inclusive) at baseline * 4\. Males or Pre-menarchal females * 5\. English-speaking parent and subject * 6\. If on stimulant medication, has demonstrated sub-optimal response to treatment ad is willing to be washed out (discontinued) from stimulant * 7\. Intellectual capacity to provide assent, as deemed by the Principal Investigator * 8\. No known cardiac history, including bradycardia, heart block, syncope or or tachycardia * 9\. No known history of hypotension or hypotension at baseline * 10\. Willing to provide informed consent/ assent per IRB protocol 11. No history of hepatic or renal impairment