We assessed the efficiency of bright light therapy as an adjuvant treatment to antidepressant pharmacotherapy in patients with severe MDD randomized by Hamilton Depression Rating Scale ( HDRS ) score to either ( @ ) @ mg venlafaxine hydrochloride daily at @:@ AM or ( @ ) @ mg venlafaxine plus @-minute light of @ lux the initial week of clinical management ( venlafaxine + bright light therapy ) daily at @:@ AM .