Project MIX: Behavioral Intervention to Reduce Risk Among Substance-Using MSM

Inclusion Criteria: be 18 years of age or older; self-identify as male; understand and read English; live within the metropolitan area; report being drunk or "buzzed" on alcohol 2 or more times or high on non-injection drugs at least once during (or two hours before) anal sex in the past six months; have had at least one unprotected anal sex episode in the past six months with a male partner of unknown or different HIV-status than their own (i.e., DUA) Exclusion Criteria: report only marijuana, only Viagra or only marijuana and Viagra use during anal sex (current research shows that marijuana use is not associated with sexual risk behavior); report injecting drugs (eligible if only methamphetamine, steroids, hormones and/or prescribed medications) in the past six months; have known their HIV-positive status for less than six months (this is done to allow for psychological and behavioral adjustment following an initial HIV diagnosis and this time frame coincides with our screening window); these men (if they so desire) will be put on a wait list and contacted after 6 months have passed since their first HIV-positive test result; are currently involved in another HIV behavioral intervention study for MSM [local study site identifies a list of such studies in their community at the time of the trial]; have a specific plan to move from the metropolitan area within the next 15 months; participated in the pilot phase of the project; other reasons that the investigators deem would make participation either detrimental to the participant or to the study.