Overview Infusion Laboratory: Protocol 3 (Risperidone) - 4 Status: Unknown status Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate clinical safety issues pertaining to risperidone, to cocaine and to its interaction, and to determine how pretreatment with risperidone modifies the subjective as well as physiological effects of cocaine. Phase: Phase 1 Details Lead Sponsor: National Institute on Drug Abuse (NIDA)Treatments: Risperidone