NIACIN Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

    Sorry, we have no data available. Please contact your doctor or pharmacist.

    If experienced, these tend to have a Less Severe expression i

    • indigestion
    • itching
    • temporary redness of face and neck
    • cough
    • nausea
    • vomiting
    • diarrhea

    INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

      Sorry, we have no data available. Please contact your doctor or pharmacist.

      If experienced, these tend to have a Less Severe expression i

      • dry eye
      • abnormal heart rhythm
      • worsening of a peptic ulcer
      • itching
      • dry skin
      • muscle pain
      • fainting
      • dizziness
      • temporary redness of face and neck
      • headache
      • nausea
      • vomiting
      • diarrhea
      • high amount of uric acid in the blood
      • high blood sugar
      • low amount of phosphate in the blood
      • decreased blood platelets
      • stomach cramps

      RARE side effects

      If experienced, these tend to have a Severe expression i

      • a disease with shrinking and weaker muscles called myopathy
      • a spasm of the larynx
      • damage to the liver and inflammation
      • hives
      • visible water retention
      • trouble breathing
      • abnormal liver function tests
      • a significant type of allergic reaction called anaphylaxis
      • a type of allergic reaction called angioedema
      • a feeling of pins and needles on skin
      • a yellowing of the eyes or skin from buildup of bilirubin called jaundice
      • macular edema

      If experienced, these tend to have a Less Severe expression i

      • a decrease in the blood clotting protein prothrombin
      • a migraine headache
      • blurred vision
      • orthostatic hypotension, a form of low blood pressure
      • low blood pressure
      • skin discoloration
      • muscle weakness
      • difficulty sleeping
      • excessive sweating
      • chills
      • a skin rash
      • heart throbbing or pounding
      • gas
      • burping
      • nervousness
      • generalized weakness

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      Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

      CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.