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Niacin

Therapy with lipid-altering agents should be only one component of multiple risk factor intervention in individuals at significantly increased risk fo.

Checked against the official label · Updated

Prescription medicine Oral

Niacin: quick answers

Used for
Therapy with lipid-altering agents should be only one component of multiple risk factor intervention in individuals at significantly increased risk for atherosclerotic vascular disease due to hyperlipidemia.
Children
With food?
Administration on an empty stomach is not recommended.
Prescription
Prescription medicine in the United States; rules differ by country.

From the official label (Dec 2025). Your prescription and pharmacist come first.

How to use Niacin

What the official label says. If a doctor prescribed it, follow the prescription. Your pack's leaflet comes first if it is different.

Who it is for

Therapy with lipid-altering agents should be only one component of multiple risk factor intervention in individuals at significantly increased risk for atherosclerotic vascular disease due to hyperlipidemia. Niacin therapy is indicated as an adjunct to diet when the response to a diet restricted in saturated fat and cholesterol and other nonpharmacologic measures alone has been inadequate. Niacin extended-release tablets are indicated to reduce elevated TC, LDL-C, Apo B and TG levels, and to increase HDL-C in patients with primary hyperlipidemia and mixed dyslipidemia. …

How to take it and how often
  • Niacin extended-release tablets should be taken at bedtime with a low-fat snack
  • Dose range: 500 mg to 2000 mg once daily
  • Therapy with niacin extended-release tablets must be initiated at 500 mg at bedtime in order to reduce the incidence and severity of side effects which may occur during early therapy and should not be increased by more than 500 mg in any 4-week period
  • Maintenance dose: 1000 to 2000 mg once daily
  • Doses greater than 2000 mg daily are not recommended
  • Initial Dosing Niacin Extended-release Tablets, USP should be taken at bedtime, after a low-fat snack, and doses should be individualized according to patient response
  • Therapy with niacin extended-release tablets must be initiated at 500 mg at bedtime in order to reduce the incidence and severity of side effects which may occur during early therapy
  • The recommended dose escalation is shown in Table 1 below
  • Table 1
  • Recommended Dosing Week(s) Daily Dose Niacin Extended-release Tablets Dosage INITIAL TITRATION SCHEDULE 1 to 4 500 mg 1 niacin extended-release tablet 500 mg at bedtime 5 to 8 1000 mg 1 niacin extended-release tablet 1000 mg or 2 niacin extended-release tablets 500 mg at bedtime After Week 8, titrate to patient response and tolerance
  • If response to 1000 mg daily is inadequate, increase dose to 1500 mg daily; may subsequently increase dose to 2000 mg daily
  • Daily dose should not be increased more than 500 mg in a 4-week period and doses above 2000 mg daily are not recommended
  • Women may respond at lower doses than men. …
Strengths it comes in

500 mg unscored, red, round, film-coated, convex tablet debossed with “KU” on one side, “320” on the other side. 1000 mg unscored, red, oval, film-coated, convex tablet debossed with “KU” on one side, “322” on the other side. Unscored film-coated tablets for oral administration: 500 and 1000 mg niacin extended-release. ( 3 )

Children
  • Safety and effectiveness of niacin therapy
  • In pediatric patients (≤16 years) have not been established
Older adults

Of 979 patients in clinical studies of niacin extended-release tablets, 21% of the patients were age 65 and over. No overall differences in safety and effectiveness were observed between these patients and younger patients, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.

While you are taking it
  • Patient Counseling Patients should be advised to adhere to their National Cholesterol Education Program (NCEP) recommended diet, a regular exercise program, and periodic testing of a fasting lipid panel
  • Patients should be advised to inform other healthcare professionals prescribing a new medication that they are taking niacin extended-release tablets
  • The patient should be informed of the following: Dosing Time Niacin extended-release tablets should be taken at bedtime, after a low-fat snack
  • Administration on an empty stomach is not recommended
  • Tablet Integrity Niacin extended-release tablets should not be broken, crushed or chewed, but should be swallowed whole. …
Talk to a doctor first if

Niacin extended-release tablets are contraindicated in the following conditions: Active liver disease or unexplained persistent elevations in hepatic transaminases [see Warnings and Precautions ( 5.3 )] Patients with active peptic ulcer disease Patients with arterial bleeding Hypersensitivity to niacin or any component of this medication [see Adverse Reactions ( 6.1 )] Active liver disease, which may include unexplained persistent elevations in hepatic transaminase levels ( 4 , 5.3 ) Active pept …

Medicines it may not mix with

Statins: Caution should be used when prescribing niacin with statins as these agents can increase risk of myopathy/rhabdomyolysis. ( 5.2 , 7.1 ) Bile Acid Sequestrants: Bile acid sequestrants have a high niacin-binding capacity and should be taken at least 4 to 6 hours before niacin extended-release administration. ( 7.2 ) 7.1 Statins Caution should be used when prescribing niacin (≥1 gm/day) with statins as these drugs can increase risk of myopathy/rhabdomyolysis [see Warnings and Precautions ( 5 ) and Clinical Pharmacology ( 12.3 )] . 7.2 Bile Acid Sequestrants An in vitro study results suggest that the bile acid-binding resins have high niacin binding capacity. …

Warnings

Niacin extended-release tablets preparations should not be substituted for equivalent doses of immediate-release (crystalline) niacin. For patients switching from immediate-release niacin to niacin extended-release tablets, therapy with niacin extended-release tablets should be initiated with low doses (i.e., 500 mg at bedtime) and the niacin extended-release tablets dose should then be titrated to the desired therapeutic response [see Dosage and Administration ( 2.1 )] . …

Possible side effects

The following adverse reactions are discussed in greater detail in other sections of the labeling: Mortality and Coronary Heart Disease Morbidity [see Warnings and Precautions ( 5.1 ) ] Skeletal Muscle (rhabdomyolysis) [see Warnings and Precautions ( 5.2 ) ] Liver Dysfunction [see Warnings and Precautions ( 5.3 ) ] Laboratory Abnormalities [see Warnings and Precautions ( 5.4 ) ] Most common adverse reactions (incidence >5% and greater than placebo) are flushing, diarrhea, nausea, vomiting, increased cough, and pruritus. …

Pregnancy and breastfeeding

8.1 Pregnancy Risk Summary Discontinue niacin extended-release tablets when pregnancy is recognized in patients receiving the drug for the treatment of hyperlipidemia. Assess the individual risks and benefits of continuing niacin extended-release tablets during pregnancy in patients receiving the drug for the treatment of hypertriglyceridemia. Advise patients to inform their healthcare provider of a known or suspected pregnancy. …

If you take too much

Supportive measures should be undertaken in the event of an overdose.

If you miss a dose

Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.

From the official U.S. FDA label for this active ingredient. Your pack may have a different strength, so always read its leaflet. If a doctor prescribed it, follow the prescription. Ask a pharmacist if you are unsure. Label dated 2025-12-25.

Brands around the world

Products with Niacin as the active ingredient. Names differ between countries.

Check your pack of Niacin

Type the registration number on the pack, or scan it with your camera.

Or take photos of the pack
3 free checks left today Official sources: U.S. FDA · EMA (EU) · Health Canada · WHO alerts

Questions about Niacin

What is Niacin used for?

Therapy with lipid-altering agents should be only one component of multiple risk factor intervention in individuals at significantly increased risk for atherosclerotic vascular disease due to hyperlipidemia. Niacin therapy is indicated as an adjunct to diet when the response to a diet restricted in saturated fat and cholesterol and other nonpharmacologic measures alone has been inadequate. Niacin extended-release tab (From the official U.S. FDA label.)

How do I take Niacin?

Follow your prescription or the leaflet in your pack. The official label says: Niacin extended-release tablets should be taken at bedtime with a low-fat snack. ( 2.1 ) Dose range: 500 mg to 2000 mg once daily. ( 2.1 ) Therapy with niacin extended-release tablets must be initiated at 500 mg at bedtime in order to reduce the incidence and severity of side effects which may occur during early therapy and should not be increased by more than 500 mg in any 4-w…

Should I take Niacin with food?

Administration on an empty stomach is not recommended.

Do I need a prescription for Niacin?

Usually yes. Niacin is a prescription medicine in most countries. Rules differ by country.

What brands contain Niacin?

Niacin is sold under names such as Folivane-f, Endur-acin, Irospan Tablet, Vitafol-one, Concept Ob, Endur-amide, Endur-thine, Niacor. Brand names differ between countries.

What are the side effects of Niacin?

The official label lists: The following adverse reactions are discussed in greater detail in other sections of the labeling: Mortality and Coronary Heart Disease Morbidity [see Warnings and Precautions ( 5.1 ) ] Skeletal Muscle (rhabdomyolysis) [see Warnings and Precautions ( 5.2 ) ] Liver Dysfunction [see Warnings and Precautions ( 5.3 ) ] Laboratory Abnormalities [see Warnings and Precautions ( 5.4 )… Tell your doctor about any side effect that bothers you or does not go away.

Can children take Niacin?

Safety and effectiveness of niacin therapy in pediatric patients (≤16 years) have not been established. Always use the dose for the child's age or weight on the pack or prescription.

Can I take Niacin when pregnant or breastfeeding?

8.1 Pregnancy Risk Summary Discontinue niacin extended-release tablets when pregnancy is recognized in patients receiving the drug for the treatment of hyperlipidemia. Assess the individual risks and benefits of continuing niacin extended-release tablets during pregnancy in patients receiving the drug for the treatment of hypertriglyceridemia. Advise patients to inform their he… Ask your doctor or midwife first.

What medicines interact with Niacin?

Statins: Caution should be used when prescribing niacin with statins as these agents can increase risk of myopathy/rhabdomyolysis. ( 5.2 , 7.1 ) Bile Acid Sequestrants: Bile acid sequestrants have a high niacin-binding capacity and should be taken at least 4 to 6 hours before niacin extended-release administration. ( 7.2 ) 7.1 Statins Caution should be used when prescribing nia… Use the free interaction checker before combining medicines.

What happens if I take too much Niacin?

Supportive measures should be undertaken in the event of an overdose. Get medical help right away.

How can I check that my Niacin is genuine?

Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.

Sources

This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.