Special report. Drug usage by employees: an update

A declining number of American workers are testing positive for drugs, according to one of the leading substance abuse testing companies in the United States. Smith-Kline Beecham Clinical Laboratories, King of Prussia, PA, conducts urinalysis for corporate clients and has tested more than six million people for drugs since 1987. In 1991, for the fifth consecutive year, it found a declining percentage of Americans on drugs at work. What is behind this apparent decline? Is it becoming easier to "beat" drug tests? What drugs are most used? Who is most likely to be on drugs? In this report, we'll present some of the conclusions about drugs in the workplace that have emerged after several years of testing and treatment experience.