An innovative, theory-based, peer-focused college drug education academic course and its effect on perceived levels of risk associated with the use of alcohol, marijuana, and cocaine are described. An analysis of covariance using pretest scores as covariates showed that the drug education course had a significant (p<.02) effect on perceived risks associated with the use of cocaine, but not with alcohol or marijuana. The author discusses several implications of these findings for the prevention of alcohol and other drug problems on campus.