Pharmaceutical preparations for the treatment of neurodegenerative diseases, namely, Alzheimer's disease (AD), pharmaceutical preparations for the treatment of headache and facial pain, namely, headache, migraine, chronic daily headache, cluster headache, trigeminal neuralgia; pharmaceutical preparations for the treatment of neuropsychiatric disorders, namely, Obsessive Compulsive Disorder (OCD); pharmaceutical preparations for the treatment of cerebellar disorders, namely, spinocerebellar at...