Which physical findings are characteristic of chronic vitamin B-3 (ie, niacin, nicotinic acid) toxicity?

Updated: Dec 26, 2017
  • Author: Mark Rosenbloom, MD, MBA; Chief Editor: Michael A Miller, MD  more...
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Answer

Chronic toxicity effects include the following:

  • Jaundice

  • Abnormal liver function test (LFT) results

  • Signs and symptoms of liver toxicity - Most common with sustained-release preparations

  • Acanthosis nigricans (rare)


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