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.
Most cases of Parkinson disease occur in people with no apparent family history of the disorder. These sporadic cases may not be inherited, or they may have an inheritance pattern that is unknown. Among familial cases of Parkinson disease, the inheritance pattern differs depending on the gene that is altered.If the LRRK2 or SNCA gene is involved, the disorder is inherited in an autosomal dominant pattern, which means one copy of an altered gene in each cell is sufficient to cause the disorder.eople with Parkinson disease also have an increased risk of developing dementia, which is a decline in intellectual functions including judgment and memory. Generally, Parkinson disease that begins after age 50 is called late-onset disease.