Vaccines; pharmaceutical preparations and substances for the prevention and treatment of disorders and diseases in, generated by or acting on the central nervous system; pharmaceutical preparations and substances acting on the central nervous system; central nervous system stimulants; pharmaceutical preparations and substances for the prevention and treatment of psychiatric and neurological disorders and diseases; pharmaceutical preparations and substances for the prevention and treatment of dementia, Alzheimer's disease and disorder, dizziness, seizures, stroke, depression, cognitive impairment, cognitive disorders and diseases, mood disorders, psychosis, anxiety, apathy, epilepsy, Lennox-Gastaut syndrome (LGS), sclerosis, porphyria, Huntington's disorder and disease, insomnia, Parkinson's disorder and disease, falls, movement disorders and diseases, tremor, schizophrenia, bipolar disorder and disease, mania, ADHD, PTSD, agitation, aggression, autism, melancholy, OCD, Tourette's syndrome, progressive supranuclear palsy (PSP); pharmaceutical preparations and substances for the prevention and treatment of restlessness, akathisia, fatigue, somnolence, nausea, cancer, migraine, pain, alcoholism and dependency; diagnostic agents, reagents, preparations and substances for medical purposes