Generalised anxiety disorder
Generalised anxiety disorder (GAD) is defined as excessive worry and tension about everyday events and problems, on most days, for at least 6 months, to the point where the person experiences distress or has marked difficulty in performing day-to-day tasks. It may be characterised by the following symptoms and signs: increased motor tension (fatigability, trembling, restlessness, and muscle tension); autonomic hyperactivity (shortness of breath, rapid heart rate, dry mouth, cold hands, and dizziness); and increased vigilance and scanning (feeling keyed up, increased startling, and impaired concentration), but not by panic attacks. One non-systematic review of epidemiological and clinical studies found marked reduction in quality of life and psychosocial functioning in people with anxiety disorders, including GAD. It also found that people with GAD had low overall life satisfaction, and some impairment in ability to fulfil roles, social tasks, or both.
Evidence-based treatment for the pharmacological treatment of anxiety disorders : recommendations from the British Association for Psychopharmacology (01 November 2005)
British Association for Psychopharmacology
World Federation of Societies of Biological Psychiatry (WFSBP) Guidelines for the Pharmacological Treatment of Anxiety, Obsessive-Compulsive and Post-Traumatic Stress Disorders: First Revision (01 October 2008)
World Federation of Societies of Biological Psychiatry