 The goal of the US-Mexico Binational Quit Using Drugs Intervention Trial QUIT is a multi-site study conducted in the US East Los Angeles and Mexico Tijuana which aims to reduce drug demand on both sides of the border. The study also aims to build a collaborative partnership between the US and Mexico research teams. The Bi-National QUIT Study will conduct a randomized control trial for risky drug use in several Los Angeles area community health centers. The intent of the trial is to interrupt the progression to addiction for the casual and occasional users of illicit drugs and non-medical users of pharmaceuticals. The Bi-National QUIT protocol will include 1 a computerized assessment of the patients drug-use history 2 very brief 5 minutes clinician advice during a patients pre-arranged medical visit which will be preceded by a computerized assessment of the patients drug-use history 3 a post visit assessment and video doctor repeating the very brief clinician advice in the waiting room 4 two post-visit telephone drug-use counseling sessions to be conducted by drug-health educators at approximately 2 and 6 weeks after the start of the intervention. Follow-up assessments will be conducted at 3 months post-randomization. Parallel activities will take place in the U.S.Los Angeles sites and MexicoTijuana sites. Data will be shared between both teams. Data analysis will be collaboratively conducted by both teams. 