Sedatives and minor tranquilizers comprise two large groups of prescription drugs used without medical supervision by college students. Knowledge of adverse psychological and biological effects of these drugs will help those working within college health facilities. (Author/DF)

This paper focuses on current knowledge about adverse biological and psychological affects of marijuana use, with special reference to risks for college students. Short-term effects on intellectual functioning and perceptual-motor coordination and long-term effects on reproduction and motivation are highlighted. (PP)

Students who use psychoactive drugs for nontherapeutic reasons differ fundamentally from nonusers. Several large-scale longitudinal studies are reviewed and characteristics of drug users are summarized. Predictive factors are discussed. (Author/MT)

The use of cocaine has become a significant part of the recreational drug scene among college students. A historical overview of cocaine is presented that begins with the history of the coca plant and includes discussion of how prominent physicians experimented with the drug on themselves and their patients. (Author/DF)

Knowledge about cocaine's effect on the human mind and body is limited and not clearly documented. This article discusses various biological and psychological effects of the drug based on clinical and laboratory studies of man. (Author/DF)

Amphetamines have a significant role in nontherapeutic drug use by college students. A brief history of amphetamine use by college students is presented. Considerable data implicate amphetamines in producing serious psychological and biological adverse effects. (Author/DF)