- M B King: Royal Free Hospital School of Medicine, London, UK.
In this article it is argued that long-term benzodiazepine (BZD) users can be classified into four broad groups, namely medical, daytime, night-time and polydrug users. Although the groups are not exhaustive or mutually exclusive, such a classification may go some way to clarify our understanding of the complex psychological and sociological phenomena involved in long-term consumption of BZDs.