Differences Between Essential Tremor and Parkinson's Disease

Search Knowledgebase

Topic Contents

Differences Between Essential Tremor and Parkinson's Disease

Topic Overview

Essential tremor differs from the tremor caused by Parkinson's disease in the following ways:

  • Essential tremor may affect the head and voice. Head tremor is uncommon in early Parkinson's disease.
  • Essential tremor is almost always worse when the affected part of the body is in motion than when it is at rest. Tremor associated with Parkinson's disease generally decreases or disappears when the person moves the affected part of the body.
  • Essential tremor is faster than the tremor of Parkinson's disease.
  • Small amounts of alcohol can noticeably reduce an essential tremor but usually have no effect on tremor caused by Parkinson's disease.
  • Essential tremor does not improve in response to levodopa, but it may be relieved with other medicines (propranolol, primidone, phenobarbital, or benzodiazepines).
  • Unlike tremor caused by Parkinson's disease, essential tremor will sometimes occur in family members.

Credits

By Healthwise Staff
Primary Medical Reviewer Anne C. Poinier, MD - Internal Medicine
Primary Medical Reviewer Andrew Swan, MD, CCFP, FCFP - Family Medicine
Specialist Medical Reviewer G. Frederick Wooten, MD - Neurology
Last Revised February 1, 2011

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.