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.
Parkinsonâs is caused by the degeneration of brain cells (neurons) in an area of the brain called the substantia nigra. These neurons are responsible for the production of a particular neurotransmitter (chemical messenger in the brain) called dopamine and it is the lack of this neurotransmitter that is responsible for the main Parkinsonâs symptoms.