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Niac

Side Effects

List Niac side effects by likelihood and severity.

The following side effects are associated with Niac:

Common side effects of Niac:

  • CoughLess Severe
  • DiarrheaLess Severe
  • Feel Like Throwing UpLess Severe
  • IndigestionLess Severe
  • ItchingLess Severe
  • Temporary Redness of Face and NeckLess Severe
  • Throwing UpLess Severe

Infrequent side effects of Niac:

  • Abnormal Heart RhythmLess Severe
  • Decreased Blood PlateletsLess Severe
  • DizzyLess Severe
  • Dry SkinLess Severe
  • Feeling FaintLess Severe
  • High Amount of Uric Acid in the BloodLess Severe
  • High Blood SugarLess Severe
  • Low Amount of Phosphate in the BloodLess Severe
  • Muscle PainLess Severe
  • Stomach CrampsLess Severe
  • Worsening of Peptic UlcerLess Severe

Rare side effects of Niac:

  • A Spasm of the LarynxSevere
  • Abnormal Liver Function TestsSevere
  • Giant HivesSevere
  • Hepatitis caused by DrugsSevere
  • HivesSevere
  • Life Threatening Allergic ReactionSevere
  • Macular EdemaSevere
  • Muscle ProblemsSevere
  • Numbness and TinglingSevere
  • Trouble BreathingSevere
  • Visible Water RetentionSevere
  • Yellowing of Skin or Eyes from Liver ProblemsSevere
  • Abnormally Low Blood PressureLess Severe
  • Blood Pressure Drop Upon StandingLess Severe
  • Blurred VisionLess Severe
  • BurpingLess Severe
  • ChillsLess Severe
  • Chronic Trouble SleepingLess Severe
  • Decrease in the Blood-Clotting Protein ProthrombinLess Severe
  • Excessive SweatingLess Severe
  • Feeling WeakLess Severe
  • GasLess Severe
  • Heart Throbbing or PoundingLess Severe
  • Migraine HeadacheLess Severe
  • Muscle WeaknessLess Severe
  • NervousLess Severe
  • RashLess Severe
  • Skin DiscolorationLess Severe

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, expect 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.

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