Since the First International Conference on the Reduction of Drug-Related Harm, held in 1990, the term 'harm reduction' has gained wide currency in the areas of public health and drug policy. Previously the field was characterized by heated struggle between prohibition and legalization of addictive substances, and this debate tended to obscure practical, collective approaches. Harm reduction, an approach which encompasses various policy directives and program initiatives was inspired by the positive outcomes of such public measures as needle-exchange programs for reduction of HIV risk,...