St John's wort for depression--an overview and meta-analysis of randomised clinical trials

Abstract

Key messages There is evidence from randomised trials that such extracts are more effective than placebo for the treatment of depressive disorders, but it is not known whether they are more effective for certain disorders than others Current evidence is inadequate to establish whether hypericum is as effective as other antidepressants and if it has fewer side effects Additional trials should be conducted to compare hypericum with other antidepressants in well defined groups of patients; to investigate long term side effects; and to evaluate the relative efficacy of different preparations and doses Key messages There is evidence from randomised trials that such extracts are more effective than placebo for the treatment of depressive disorders, but it is not known whether they are more effective for certain disorders than others Current evidence is inadequate to establish whether hypericum is as effective as other antidepressants and if it has fewer side effects Additional trials should be conducted to compare hypericum with other antidepressants in well defined groups of patients; to investigate long term side effects; and to evaluate the relative efficacy of different preparations and doses