Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Dopamine beta-hydroxylase reaction

This reaction depends on the use of ascorbate (vitamin C) as a cofactor. Image by Arie2501 (2013). (Courtesy of Wikimedia Commons. Creative Commons Attribution-Share Alike 3.0 Unported license.)

Related Media

Associated Disorders

  • Atrial fibrillation
  • Orthostatic hypotension
  • Syncope