- Alcohol Use: Patient is unable to abstain from alcohol use during the study. This will be assessed by asking the following questions: "During the past 30 days, on how many days did you have at least one drink of alcohol?"; "During the past 30 days, on how many days did you have 5 or more drinks of alcohol in a row, that is, within a couple of hours?"; "This study requires that you abstain from alcohol use during the course of the study. Do you think you can do this?"