APA Dictionary of Psychology

an approach to fighting substance use (including tobacco and alcohol use) that attempts to reduce user demand for drugs with the potential for abuse or dependency through such tactics as antidrug education in schools, antidrug advertising (e.g., on television, billboards, and online), and legislation requiring that health warnings be prominently placed on product packaging (e.g., cigarettes, alcoholic beverages). In contrast, supply reduction attempts to lessen the supply of controlled substances through, for example, drug interdiction, drug-seller arrests, and the requirement that retailers limit access to substances such as inhalants.