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Niacor

Generic Name: niacin (nicotinic acid) (NYE a sin (NIK oh TIN ik AS id))
Brand Name: B-3-50, B3-500-Gr, Niacin SR, Niacor, Niaspan ER, Slo-Niacin
Physician reviewed Niacor patient information - includes Niacor description, dosage and directions.
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Drug Information:
Niacor is used to lower blood levels of "bad" Cholesterol (low-density lipoprotein, or LDL) and triglyceRides, and increase levels of "good" Cholesterol (high-density lipoprotein, or HDL). Niacor may also be used for purposes not listed in this medication guide. You should not take Niacor if you have severe liver disease, a stomach ulcer, or active bleeding. You should not take Niacor if you are allergic to it, or if you have: severe liver disease; a stomach ulcer; or active bleeding. Tell your doctor if you have ever had: Learn more

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Niacor Side Effects

Note: This document contains side effect information about niacin. Some of the dosage forms listed on this page may not apply to the brand name Niacor.

In Summary

Common side effects of Niacor include: pruritus, nausea, and flushing. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to niacin: oral capsule, oral capsule extended release, oral tablet, oral tablet extended release

Along with its needed effects, niacin (the active ingredient contained in Niacor) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking niacin:

Less common

  • Darkening of urine
  • light gray-colored stools
  • loss of appetite
  • severe stomach pain
  • yellow eyes or skin

Some side effects of niacin may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common

  • Abdominal or stomach pain
  • cough
  • diarrhea
  • feeling of warmth
  • flushing or redness of the skin, especially on the face and neck
  • headache
  • nausea or vomiting
  • rash or itching
  • runny nose
  • sneezing
  • stuffy nose

Incidence not known

  • Dizziness or faintness
  • dryness of the skin
  • fever
  • frequent urination
  • joint pain
  • muscle aching or cramping
  • side, lower back, or stomach pain
  • swelling of the feet or lower legs
  • unusual thirst
  • unusual tiredness or weakness
  • unusually fast, slow, or irregular heartbeat

For Healthcare Professionals

Applies to niacin: compounding powder, oral capsule, oral capsule extended release, oral liquid, oral tablet, oral tablet extended release

Cardiovascular

Very common (10% or more): Flushing (i.e., warmth, redness, itching, and/or tingling) (up to 88%)

Frequency not reported: Tachycardia, palpitations, atrial fibrillation, other cardiac arrhythmias, syncope, hypotension, postural hypotension

Dermatologic

Common (1% to 10%): Rash, pruritus

Frequency not reported: Sweating, skin burning sensation, maculopapular rash, dry skin

Postmarketing reports: Skin discoloration

Gastrointestinal

Very common (10% or more): Diarrhea (up to 14%), nausea (up to 11%)

Common (1% to 10%): Vomiting

Frequency not reported: Peptic ulcers, eructation, flatulence

Hematologic

Postmarketing reports: Slight reductions in platelet counts, prothrombin time prolonged

Hypersensitivity

Postmarketing reports: Hypersensitivity reactions (e.g., anaphylaxis, angioedema, urticaria, flushing, dyspnea, tongue edema, larynx edema, face edema, peripheral edema, laryngismus, vesiculobullous rash)

Hepatic

Postmarketing reports: Hepatitis, jaundice

Metabolic

Frequency not reported: Decreased glucose tolerance, gout

Musculoskeletal

Frequency not reported: Myalgia, myopathy

Nervous system

Frequency not reported: Dizziness, syncope

Postmarketing reports: Migraine, asthenia, paresthesia

Ocular

Postmarketing reports: Blurred vision, macular edema

Psychiatric

Postmarketing reports: Insomnia, nervousness

Other

Frequency not reported: Chills, edema

Respiratory

Common (1% to 10%): Cough increased

Frequency not reported: Dyspnea

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Niacor (www.drugs.com/mtm/niacor.html).