Abstract
Any account of the epidemiology of drug dependence in the United Kingdom inclines to give emphasis to the narcotic problem. That this should be so is hardly surprising given the recency of this phenomenon, its rapid escalation, and its associated high morbidity and mortality. Even so it needs to be recognized that the “drug problem” in the United Kingdom involves multiple drug abuse and that the curtailment of a particular epidemic is likely to be attended by the increased abuse of another drug. Accordingly this review will concern itself with drugs in addition to narcotics, though pre-eminence will be given to the abuse of heroin.