RecruitingPhase 1Drug trialSafety and Tolerability Study of VVZ-2471 in Healthy VolunteersThe goal of this study is to do follow-up testing on the safety and tolerability of an experimental (not FDA approved) medication. This study is seeking non-illicit drug using adults to test the medication. Results of this study will help us to develop future studies to test the medication with people who use substances. This research is supported by and included in the NIH HEAL Initiative (https://heal.nih.gov/).