Evidence-based guidelines for management of attention-deficit/ hyperactivity disorder in adolescents in transition to adult services and in adults: recommendations from the British Association for Psychopharmacology D. J. Nutt Psychopharmacology Unit, University of Bristol, Bristol, UK. K. Fone University of Nottingham, Nottingham UK. P. Asherson MRC Social Genetic Developmental Psychiatry, Institute of Psychiatry, King’s College London, UK. D. Bramble Telford & Wrekin PCT, Shrewsbury, UK. P. Hill London, UK. K. Matthews University of Dundee, Dundee UK. K. A. Morris c/o Psychopharmacology Unit, University of Bristol, Bristol, UK. P. Santosh Institute of Psychiatry, London, UK. E. Sonuga-Barke University of Southampton, Southampton, UK. E. Taylor Institute of Psychiatry, London, UK. M. Weiss University of British Columbia, Vancouver, Canada. S. Young Bethlem Royal Hospital, Kent, UK. For the Consensus Group (other invited participants at the consensus meeting ‘ADHD in transition from child to adult’ are listed in the Acknowledgements). Abstract Guidelines J Psychopharm Journal of Psychopharmacology 21(1) (2007) 10–41 © 2007 British Association for Psychopharmacology ISSN 0269-8811 SAGE Publications Ltd, London, Thousand Oaks, CA and New Delhi 10.1177/0269881106073219 Attention-deficit/hyperactivity disorder (ADHD) is an established diagnosis in children, associated with a large body of evidence on the benefits of treatment. Adolescents with ADHD are now leaving children’s services often with no readily identifiable adult service to support them, which presents problems as local pharmacy regulations often preclude the prescription of stimulant drugs by general practitioners (GPs). In addition, adults with ADHD symptoms are now starting to present to primary care and psychiatry services requesting assessment and treatment. For these reasons, the British Association for Psychopharmacology (BAP) thought it timely to hold a consensus conference to review the body of evidence on childhood ADHD and the growing literature on ADHD in older age groups. Much of this initial guidance on managing ADHD in adolescents in transition and in adults is based on expert opinion derived from childhood evidence. We hope that, by the time these guidelines are updated, much evidence will be available to address the many directions for future research that are detailed here. Keywords ADHD, hyperkinetic disorders, hyperactivity, impulsivity, psychostimulants, psychotherapy, co-morbidities Corresponding author: Prof. David J. Nutt, Psychopharmacology Unit, Dorothy Hodgkin Building, Whitson St, Bristol BS1 3NY, UK. Email: david.j.nutt@bristol.ac.uk