Overview Dronabinol Treatment for Marijuana Addiction Status: Completed Trial end date: 2009-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if dronabinol decreases the symptoms of marijuana addiction and withdrawal. Phase: Phase 2 Details Lead Sponsor: New York State Psychiatric InstituteCollaborator: National Institute on Drug Abuse (NIDA)Treatments: Dronabinol