Integrated Diagnosis and Treatment of Adults With Attention-deficit/Hyperactivity Disorder

Inclusion Criteria: * Adult patients with newly diagnosed ADHD Exclusion Criteria: * Known sensitivity to methylphenidate or any of the excipients * Glaucoma * Phaeochromocytoma * During treatment with non-selective, irreversible monoamine oxidase (MAO) inhibitors, or within a minimum of 14 days of discontinuing those drugs, due to risk of hypertensive crisis * Hyperthyroidism or Thyrotoxicosis * Diagnosis or history of severe depression, anorexia nervosa/anorexic disorders, suicidal tendencies, psychotic symptoms, severe mood disorders, mania, schizophrenia, psychopathic/borderline personality disorder. * Diagnosis or history of severe and episodic (Type I) Bipolar (affective) Disorder (that is not well-controlled) * pre-existing cardiovascular disorders including severe hypertension, heart failure, arterial occlusive disease, angina, haemodynamically significant congenital heart disease, cardiomyopathies, myocardial infarction, potentially life-threatening arrhythmias and channelopathies (disorders caused by the dysfunction of ion channels) * pre-existing cerebrovascular disorders cerebral aneurysm, vascular abnormalities including vasculitis or stroke * a history of pronounced anacidity of the stomach with a pH value above 5.5, in therapy with H2-receptor blockers or in antacid therapy,