30
Participants
Start Date
August 31, 1998
Primary Completion Date
August 31, 2001
Study Completion Date
October 31, 2001
Naltrexone
50 mg/d Naltrexone will be administrated during three weeks.
Placebo
During 3 weeks of the study, Placebo will be administrated (daily)
Department of Psychiatry and Psychotherapy, University of Freiburg, Freiburg im Breisgau
University of Freiburg
OTHER
Central Institute of Mental Health, Mannheim
OTHER