herbal medicine in the treatment of schizophrenia: a review

As a chronic psychiatric disorder, schizophrenia affects the worldwide population with a lifetime prevalence of 1% and considerable longterm mortality, morbidity, and burden. besides the adverse effects of routine treatment regimens, a significant portion of patients remain symptomatic despite treatment, especially those with negative symptoms which are the major disabling factors in these patients. there is an emerging role for herbal medicine in the treatment of schizophrenia. in this review we focus on some herbal medicines that have been reported to have some effects on schizophrenia.