The enhancing complexity of daily life in modern culture usually causes unexpected degree of anxiety and depression. Ailments affecting mood have been linked with chronic pain among patients in developing as well as developed countries [7-11]. Anxiety and depression are common psychiatric disorders, having occurrence up to 15-25% of adult population [12]. World Health Organization predicts that by the year 2020, depression will be the second prominent reason behind premature death or disability [13]. Presently, numerous therapies are used for the treatment of anxiety. Benzodiazepines have been utilized as the drugs of choice for severe anxiety and are now mostly used in the treatment of acute and chronic anxiety disorders as well as effectively in depression. However 12–15% depressive patients did not show response at all, along with their possible side effects [14]. Hence limited efficacy of present drugs raises the need for different, better-tolerated and more useful treatments.