A retrospective case note study was made of 93 cases of deliberate self-poisoning admitted to the Casualty Department of a busy District General Hospital. The population under investigation is described in terms of age, sex and substance overdosed; it is broadly similar to populations described in most other studies of overdose. Our results show a higher incidence of functional psychoses (19.4%) than other studies, due to an excess of depressive psychosis in females. The main finding is that 84% of patients referred for psychiatric out-patient treatment either failed to attend or failed to complete the treatment. These results are discussed and suggestions made.