Niacin
Niacor is a brand-name formulation of niacin (vitamin B3) used to treat elevated cholesterol and triglyceride levels. It is also used to prevent or treat niacin deficiency (pellagra). The medication works by reducing the liver's production of LDL cholesterol and triglycerides while increasing HDL cholesterol.
Niacor is a vitamin B3 medication used to lower cholesterol and triglycerides and treat niacin deficiency.
Key facts at a glance
- RxNorm
- 218728
- Generic
- Niacor
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of hyperlipidemia including elevated LDL cholesterol and triglycerides; prevention and treatment of niacin deficiency (pellagra)
Niacin reduces hepatic (liver) production of LDL cholesterol and VLDL particles (which carry triglycerides), while increasing HDL cholesterol levels. It also inhibits mobilization of fatty acids from adipose tissue.
Common side effect is flushing (warmth, redness, itching); should be taken with food. May affect liver function and blood glucose levels. Avoid alcohol during treatment. Do not substitute extended-release formulations for immediate-release without medical supervision. Use only under healthcare provider guidance.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy