Overview Infusion Laboratory: Protocol 4 (Dihydrexidine) - 13 Status: Unknown status Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate safety issues pertaining to dihydrexidine (DHX), to cocaine, and to its interaction, and to determine how pretreatment with DHX modifies the subjective as well as physiological effects of cocaine infusion. Phase: Phase 1 Details Lead Sponsor: National Institute on Drug Abuse (NIDA)Treatments: Dihydrexidine