[Pain relief medication; preparation for the relief of pain;] pharmaceutical preparations acting on the central nervous system; pharmaceutical preparations for use in the treatment and/or management of sleep disorders, [ chronic fatigue syndrome, drug and alcohol abuse, anxiety, cerebrovascular diseases,] neurological disorders,[ parkinson's disease, alzheimer's disease, multiple sclerosis, autism, depression, inflammatory disorders, irritable bowel disorder, regional ileitis, ulcerative colitis, automimmune inflamatory disorders, endocrine disturbances, and diabetes; and pharmaceutical preparations for the purpose of tissue protection including protection following hypoxia/anoxia such as in stroke, organ transplantation, organ preservation, myocardial infarction or ischemia, reperfusion injury, and protection following radiation, progeria, or an increased level of intracranial pressure, e.g., due to head trauma. ]