The past of Drug Addiction When Paracelsus (Theophrastus Bombastus von Hohenheim, 1493-1541) stated that he would not like to be a physician without opium, he underlined the importance of opium, which was then widely used as an analgesic, hypnotic, sedative and tranquillizer and the treatment of diarrhoea. The use of opium itself as a universal…