The object of this investigation was to describe the choice of recommended/non-recommended anti-anginal preparations in a group of patients in a hospital and prescribed by the general practitioner on discharge and during the subsequent three years. Eighty-nine patients participated in the investigation. Sixty-nine of these received medicinal treatment at the conclusion of the period. The investigation demonstrates that the recommendations by the Danish Drug Committee were followed in 90% of the cases during the last year of observation. It is concluded that the activities of the Danish Drug Committee may influence the choice of anti-anginal preparations on discharge from hospital and during the subsequent three years.