Note to the reader

This report is divided into seven parts. Following the introduction (part I), and description of the study design and methods (part II), part III consists of two parallel sections, in which the study findings of the trial on injectable heroin (part IIIA) and on inhalable heroin (part IIIB) are presented separately. The numbers of the chapters and paragraphs in the injectable heroin section, marked with "A", correspond with those in the inhalable heroin section, marked with "B". To further assist the reader in distinguishing between the two trials, a different marker is placed on the top corner of the pages in the injectable heroin section (short green marker), and in the inhalable heroin section (long green marker). In the subsequent parts, the feasibility of co-prescribed heroin treatment is discussed for both trials combined (part IV), and the conclusions and recommendations are formulated for both trials combined (part V). Lastly, part VI and VII contain the references and appendices, respectively.