All definitional requirements for amnestic transtorno are met. The memory symptoms are judged to be the direct consequence of uso of sedatives, hypnotics or anxiolytics. The intensity and duration of uso of sedatives, hypnotics or anxiolytics must be known to be capable of producing memory impairment. The memory impairment may develop during or soon after sedative, hypnotic or anxiolytic intoxicação or abstinência, but its intensity and duration are substantially in excess of those normally associated com these conditions. The symptoms are not better accounted for by another transtorno or medical condition, as might be the case if the amnestic symptoms preceded the onset of uso of sedatives, hypnotics or anxiolytics.