Niacin SR Side Effects
Generic name: niacin
Medically reviewed by Drugs.com. Last updated on Jul 26, 2021.
Note: This document contains side effect information about niacin. Some dosage forms listed on this page may not apply to the brand name Niacin SR.
Applies to niacin: oral tablets.
Side effects include:
Flushing (e.g., warmth, redness, itching and/or tingling), headache, pain, abdominal pain, diarrhea, dyspepsia, nausea, vomiting, rhinitis, pruritus, rash.
For Healthcare Professionals
Applies to niacin: compounding powder, oral capsule, oral capsule extended release, oral liquid, oral tablet, oral tablet extended release.
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[Ref]
Common (1% to 10%): Rash, pruritus
Frequency not reported: Sweating, skin burning sensation, maculopapular rash, dry skin
Postmarketing reports: Skin discoloration[Ref]
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[Ref]
Postmarketing reports: Slight reductions in platelet counts, prothrombin time prolonged[Ref]
Postmarketing reports: Hypersensitivity reactions (e.g., anaphylaxis, angioedema, urticaria, flushing, dyspnea, tongue edema, larynx edema, face edema, peripheral edema, laryngismus, vesiculobullous rash)[Ref]
Postmarketing reports: Hepatitis, jaundice[Ref]
Frequency not reported: Decreased glucose tolerance, gout[Ref]
Frequency not reported: Myalgia, myopathy[Ref]
Frequency not reported: Dizziness, syncope
Postmarketing reports: Migraine, asthenia, paresthesia[Ref]
Postmarketing reports: Blurred vision, macular edema[Ref]
Postmarketing reports: Insomnia, nervousness[Ref]
Frequency not reported: Chills, edema[Ref]
Common (1% to 10%): Cough increased
Frequency not reported: Dyspnea[Ref]
Frequently asked questions
More about Niacin SR (niacin)
- Check interactions
- Compare alternatives
- Reviews (3)
- Dosage information
- During pregnancy
- Drug class: miscellaneous antihyperlipidemic agents
Niaspan, Endur-acin, Niacor, Slo-Niacin, ... +4 more
Related treatment guides
1. "Product Information. Niacin (niacin)." 21st Century Healthcare Inc (2017):
2. "Product Information. Niacor (niacin)." Upsher-Smith Laboratories Inc (2017):
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Some side effects may not be reported. You may report them to the FDA.