Combined Effects of Alcohol and Caffeine

• Status: Completed
• Trial end date: 2015-01-01
• Target enrollment: 0
• Participant gender: All

Summary

The purpose of this study is to investigate the effects of caffeine on the self-administration of alcohol. The study will also examine the combined effects of alcohol and caffeine on behavioral performance, participant ratings of behavioral performance, and self-reported subjective effects.

• Phase: Phase 1
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Johns Hopkins University
• Collaborator: National Institute on Drug Abuse (NIDA)
• Treatments: Caffeine; Ethanol; Quinine

Criteria

Inclusion Criteria:

• Very light or moderate consumer of caffeine (either daily or non-daily).

• Social drinker of alcohol.

• Has experience in lifetime of heavy alcohol consumption.

• Read, write, and speak English fluently.

Exclusion Criteria:

• Serious and unstable illnesses including current hepatic, renal, gastroenterologic, respiratory, cardiovascular (including ischemic heart disease, uncontrolled hypertension, and congestive heart failure), endocrinologic, neurologic (including stroke, transient ischemic attack, subarachnoidal bleeding, brain tumor, encephalopathy, and meningitis), or hematologic disease.

• Parkinson's disease, seizure disorder, or history of significant head trauma.

• Current psychiatric illness

• Pregnant or nursing women or women who are not using an effective means of birth control.