Naltrexone has been demonstrated in western studies to be a useful pharmaco
logical adjunct within treatment programmes for alcoholic patients. We repo
rt the first study of its efficacy and usefulness in an Asian region. This
project was designed to allow naltrexone's performance to be assessed under
routine clinical conditions but with patients selected on the basis of the
ir being likely to comply. Following in-patient detoxification, 53 male alc
ohol-dependent patients admitted to the Alcohol Treatment Centre at Woodbri
dge Hospital, Singapore, were enrolled in a 12-week, placebo-controlled tri
al of naltrexone hydrochloride (50 mg/day). Subjects were randomized on a 2
:1 basis, with 35 receiving naltrexone and 18 receiving placebo. Analyses i
dentified that a higher percentage of naltrexone patients completed the stu
dy (40% vs. 22%). In the study non-completers, the dropout rate due to drin
king relapse was also lower in the naltrexone group (9% vs. 43%). Of the 39
patients for whom drinking status over the trial could be ascertained, few
er naltrexone-treated patients drank (33% vs. 53%). Alcohol craving scores
also showed a selective and distinct reduction in the naltrexone-treated gr
oup. Results suggest that naltrexone may be an effective and safe aid to tr
eatment of alcohol dependent patients in Asian patients, for whom the aims
are to reduce alcohol craving and drinking reinstatement, but where complia
nce is likely to be low.