A drug consumption room is an important part of acceptance-orientated drug work and tertiary prevention. They decrease the risks of infectious diseases and subsequent damages, which can be caused by drug use. This bachelor thesis gives a detailed overview about the topic “drug consumption room”, especially about the development of such institutions in Germany and Switzerland. The historical development and the actual situation of drug consumption rooms in these countries will be illustrated with the help of three examples of each country (Frankfurt, Hamburg, Berlin, Berne, Zurich and Basel). Furthermore the situation in Austria, especially in Vienna, will be presented. The focus will lies on the national discussion of the last few years about drug consumption rooms.