This book presents the current clinical evidence on the efficacy of herbal and nutritional treatments for anxiety that is experienced in association with psychiatric disorders, and explains how health professionals can apply this knowledge to the benefit of patients presenting with a wide range of symptoms, including comorbid mood disorders. All chapters are written by world-leading researchers who draw on the findings of human clinical trials to provide uncompromising assessments of individual treatments, including herbal anxiolytics with sedative actions, adaptogens, cognitive anxiolytics, and nutraceuticals. Traditional treatments requiring further study   including the plant-based psychotropic Ayahuasca and other phytotherapies of potential value in the treatment of anxiety   are also reviewed.