Overview The Efficacy of Doxazosin for Cocaine Users Status: Completed Trial end date: 2011-12-01 Target enrollment: Participant gender: Summary Doxazosin, an alpha 1-adrenergic receptor, may play an important role in cocaine addiction in humans. This study will evaluate the effectiveness of doxazosin in preventing drug relapse among cocaine dependent participants. Phase: Phase 1 Details Lead Sponsor: Baylor College of MedicineCollaborator: National Institute on Drug Abuse (NIDA)Treatments: Adrenergic AntagonistsCocaineDoxazosin