Some are available by prescription only; others can be bought over-the-counter. FDA has also approved several prescription drugs to relieve dry mouth caused by certain medical treatments or conditions, such as Sjoegren'sjÃ¶gren s syndrome and radiation for head or neck. cancer
Parkinson's disease (or, simply, Parkinson's or PD) is the most common form of parkinsonism, a group of motor system disorders. It is a slowly progressing, degenerative disease that is usually associated with the following symptoms, all of which result from the loss of dopamine-producing brain cells: Tremor or trembling of the arms, jaw, legs, and face.
Parkinson's Disease Clinic and Research Center. Gene therapy for Parkinsonâs disease. Parkinson's disease is characterized by loss of dopaminergic neurons in the substantia nigra. The loss of these neurons results in a change in the balance of expiratory and inhibitory pathways in the brain, and these pathways in turn affect movement control.