Overview Examining Hair to Determine Tenofovir Exposure Status: Completed Trial end date: 2010-06-01 Target enrollment: Participant gender: Summary This study will determine whether a hair test can reveal how much of the anti-HIV medication tenofovir a person without HIV has been exposed to. Phase: Phase 1 Details Lead Sponsor: Public Health Foundation Enterprises, Inc.Collaborator: National Institute of Mental Health (NIMH)Treatments: Tenofovir