Atomoxetine Hydrochloride Versus Placebo in Taiwanese Children and Adolescents With ADHD

Inclusion Criteria: * Subject must have ADHD that meet DSM-IV disease diagnostic criteria as well as severity criteria * Subjects must be aged 6 to 16 years * Subjects must not have taken any medication used to treat ADHD or they must have completed the washout procedures * Subjects must be able to swallow capsules * Subjects must be of normal intelligence in the judgment of the investigator. Normal intelligence is defined as being without evidence of significant general intellectual deficit and expected to achieve a score of 80 or more if formal IQ testing were administered. Exclusion Criteria: * Weigh less than 20 kg or more than 60 kg at study entry * Have a history of Bipolar I or II disorder, psychosis, or pervasive developmental disorder * Meet DSM-IV criteria for an anxiety disorder as assessed by the investigator * Have a history of any seizure disorder (other than febrile seizures) or prior ECG abnormalities related to epilepsy, or subjects who have taken (or are currently taking) anticonvulsants for seizure control * Subjects who have a history of severe allergies to more than 1 class of medications or multiple adverse drug reactions.