A double-blind, randomized controlled trial of patients (n = 136) meeting DSM-IV criteria for alcohol withdrawal and stratified based on detoxification history were treated with carbamazepine or lorazepam for 5 days on a fixed dose tapering schedule. Mood symptoms improved for all subjects regardless of medication or detoxification history. There was a significant main effect favoring carbamazepine in reducing anxiety (p = 0.0007). Anxiety was highest in those individuals who had multiple previous detoxifications (p = 0.02). Visual analog measures of sleep quality indicated a statistically significant main effect of medication on sleep that again favored carbamazepine (p = 0.0186). Visual analog rating of perceived ability to return to work was decreased in individuals who had multiple previous detoxifications (p = 0.025). In this study of outpatients with mild to moderate alcohol withdrawal, carbamazepine was superior to lorazepam in reducing anxiety and improving sleep.