In Parkinson's disease, dopamine production becomes irregular and inadequate and nerve cells cannot properly transmit messages. This results in the loss of muscle function. By providing an even, adequate supply of medication that the body converts into dopamine, neurons are able to transmit messages and tremors improve.
A.D.A.M. Health Solutions Editorial Team, Ebix, Inc.: David Zieve, MD, MHA, and David R. Eltz. Previously reviewed by Luc Jasmin, MD, PhD, Department of Neurosurgery at Cedars-Sinai Medical Center, Los Angeles, and Department of Anatomy at UCSF, San Francisco, CA. Review provided by VeriMed Healthcare Network (9/26/2011).