Niacin Side Effects

Serious Side Effects

Some side effects with niacin, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include, but are not limited to:
 
  • Signs of liver damage, such as:

 

    • Yellowing of the whites of the eyes or skin (jaundice)
    • Upper-right abdominal pain (stomach pain)
    • Dark urine
    • High liver enzymes (found using a blood test)

 

  • Signs of a stomach ulcer, such as:

 

    • Severe heartburn
    • Stomach pain
    • Loss of appetite
    • Dizziness
    • Vomiting blood
    • Blood in the stool (seen as dark-colored stools)

 

  • High blood sugar (hyperglycemia) in people with diabetes
  • Gout
  • Signs of low blood pressure (hypotension), such as lightheadedness, dizziness, or fainting
  • An irregular heart rhythm (arrhythmia)
  • Signs of an allergic reaction, such as:

 

    • An unexplained rash
    • Hives
    • Itching
    • Swelling of the mouth or throat
    • Wheezing
    • Difficulty breathing.

 

Final Thoughts on Niacin Side Effects

You may experience some or none of the niacin side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have side effects from a medicine that you have never tried. Therefore, make sure to let your healthcare provider know if you develop any problems while taking the drug or if something "just does not seem right." While it may not be a side effect of niacin, your healthcare provider will be able to diagnose and treat the problem.
 
Ouch! 6 Types of Pain You Might Experience When Getting a Stent

Niacin Vitamin Information

Terms of Use
Advertise with Us
Contact Us
About eMedTV
Privacy Policy
Copyright © 2006-2014 Clinaero, Inc.
eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind. Site users seeking medical advice about their specific situation should consult with their own physician. Click Terms of Use for more information.