[Recommended Preparation: ENGL 115 or equivalent or through the Southwestern College multiple measures placement processes; RDG 158 or equivalent or through the Southwestern College multiple measures placement processes.] Emphasizes the study of the biological principles underlying the effects of major legal and illegal drugs on the human body. Surveys the commonly abused drugs with regard to their chemical nature, where and how they act, and the factors that modify their effects. [D; CSU; UC]