Systematic reviews

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Effectiveness and safety of alpha agonists for ADHD in population between 6 and 19 years: a systematic review

Evaluación de la efectividad y seguridad de los alfa agonistas para déficit atencional en población entre 6 y 19 años: revisión sistemática

Abstract

Introduction: Attention deficit hyperactivity disorder (ADHD) is generally treated with pharmacological interventions; psychostimulants are first choice. Other alternatives have been used such as alpha agonists (clonidine), hence it is important to know its effectiveness and safety. Purpose: To identify, synthesize and evaluate the best available evidence on the effectiveness and safety of alpha agonists in treating ADHD in the 6-19 year-old population. Methods: A systematic review of intervention studies that evaluated effectiveness comparing alpha agonists to methylphenidate was conducted. Outcomes measured were educational performance, psychosocial functioning, quality of life and adverse effects. The following databases were searched up to February 2012 in English and Spanish: PubMed/MEDLINE, Lilacs, Cochrane, DARE and National Guideline Clearinghouse. The articles that met the inclusion criteria were assessed by two researchers independently. Results: Of the 34 studies found initially, three were included, among which a systematic review and two clinical guidelines. Conclusions: Clonidine is considered an effective second and third line treatment for ADHD symptoms, but it is less effective than stimulants. Its use is associated with many side effects.