This book provides an overview of the medical discoveries of Professor Enderlein as well as the tumultuous history of the development of the corresponding medications. Furthermore, Erik Enby describes his therapeutic experiences in using these medications for severe illnesses, such as cancer or multiple sclerosis. This book offers patients a good insight into a therapy for which Professor Enderlein laid the foundations many decades ago. For prescribers, the book is a treasure trove of historical and professional information that has not been generally available in this form in the German language.