Practice Guidelines for Managing Alcohol Withdrawal Delirium
Alcohol
  withdrawal delirium can cause serious morbidity and mortality if
  not treated appropriately. To inform clinical practice, researchers
  conducted a structured review and meta-analysis (including 9 prospective
  controlled trials) and developed evidence-based guidelines for
  managing alcohol withdrawal delirium. 
Compared
  with neuroleptics, sedative-hypnotics were more effective at decreasing
  mortality (in 2 trials that had any deaths), and at shortening
  the duration of delirium (in 3 of 4 trials). In 2 studies reporting
  the time required to control agitation, intravenous diazepam was
  better than paraldehyde per rectum in 1, but intramuscular diazepam
  was no different from oral barbital in the other. 
Based
  on these findings and review of other data, the researchers recommended
  the following:
- 
  providing
 comprehensive monitoring and supportive care
- using parenteral,
 rapid-acting sedative-hypnotics (preferably benzodiazepines due
 to their more favorable therapeutic/toxic index) to achieve light
 sedation
- considering
 pentobarbital or propofol if agitation is not controlled with
 initial large doses of benzodiazepines (based on case reports)
- considering
 neuroleptics only when the patient has continued agitation, disturbed
 thinking, or perceptual disturbances despite sedative-hypnotic
 treatment
Comments:
The
practice guidelines outlined in this paper are very practical
and reasonable. Although the studies examined are limited
  (the 9 trials were all published before 1979, 5 of the
  9
included fewer than 20 subjects per treatment group, and
conclusions about mortality were based on only 9 deaths),
the evidence and years of clinical experience with these
  drugs support the use of sedative-hypnotics, primarily
  benzodiazepines,
for alcohol withdrawal delirium.
                    
						  Kevin
  L. Kraemer, MD, MSc 
					
Reference:
Mayo-Smith
MF, Beecher LH, Fischer TL, et al. Management of alcohol
withdrawal delirium: an evidence-based practice guideline.
  Arch Intern Med. 2004;164(13):1405–1412.
(view
  abstract)