Setting the policy agenda for the treatment of substance use disorders in Iran.

For a long time in Iran, policies based on the war on drugs were the dominant approach, and then, policies based on harm reduction and patient-centeredness were considered. The ideology and political parties influenced the executive apparatus's policy stream in this area. In countries with an ideological approach, the political stream plays a critical role in setting issues on the agenda. Therefore, policy entrepreneurs can put the points on the agenda by attracting the attention of political forces to the issue.