The American Autonomic Society and the American Academy of Neurology deprecated it as a disease entity in 1996, and existing cases were redefined as multiple system atrophy with autonomic phenomena. The name "Shy-Drager syndrome" is still used occasionally for multiple system atrophy when the primary symptoms are autonomic failure.
Other nonspecific neurologic symptoms such as ataxia and pyramidal symptoms
No definitive treatment currently exists. Medications used for Parkinson's disease have not shown to be useful. Treatments are generally geared to give symptomatic control, especially to maintain adequate blood pressure (adrenergic agonists, and mineralocorticoid analogs such as fludrocortisone).
Johnny Cash (possible misdiagnosis of autonomic neuropathy)