PlainMeds provides educational information only. This is not medical advice. Always consult your doctor or pharmacist.

atorvastatin vs niacin

Side-by-side comparison of atorvastatin and niacin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

moderate Known Drug Interaction

Niacin Clinical Impact: Cases of myopathy and rhabdomyolysis have been observed with concomitant use of lipid modifying dosages of niacin ( > 1 gram/day niacin) with atorvastatin. Intervention: Consider if the benefit of using lipid modifying dosages of niacin concomitantly with atorvastatin outweighs the increased risk of myopathy and rhabdomyolysis.

Recommendation: Your doctor will decide if the benefits of taking both drugs are worth the increased risk to your muscles.

Drug Class
atorvastatin HMG-CoA Reductase Inhibitor (Statin)
niacin Vitamin B3 (Lipid-Modifying)
Type
atorvastatin Prescription
niacin Over-the-Counter
Summary
atorvastatin

Atorvastatin is a drug that lowers cholesterol and reduces the risk of heart problems and stroke. It belongs to a class of drugs called statins.

niacin

This medicine is a multivitamin with fluoride. It helps prevent tooth decay and provides essential vitamins.

What It Treats
atorvastatin

Atorvastatin is used to lower bad cholesterol (LDL) and triglycerides in your blood. It can help prevent heart attacks, strokes, and the need for heart procedures in adults with heart disease or risk factors for it. It is also used in children 10 years and older with certain inherited cholesterol problems.

niacin

This medicine is for children ages 4 and up who don't get enough fluoride in their drinking water. It helps prevent tooth decay. It also gives you ten important vitamins to avoid vitamin deficiencies.

How It Works
atorvastatin

Atorvastatin works by blocking a substance your body needs to make cholesterol. This helps to lower the amount of cholesterol in your blood. Lowering cholesterol can help prevent heart disease.

niacin

The fluoride in this medicine strengthens your teeth to protect them from decay. The vitamins help your body work properly and stay healthy.

Common Side Effects
atorvastatin
  • Common cold symptoms
  • Joint pain
  • Diarrhea
  • Pain in arms or legs
  • Urinary tract infection
niacin

No common side effects listed.

FAERS Reports
atorvastatin
  • Tiredness 13,809
  • Feeling sick to your stomach 12,421
  • Type 2 diabetes 11,243
  • Diarrhea 11,034
  • Difficulty breathing 11,029
niacin
  • Feeling tired 749
  • Feeling sick to your stomach 671
  • Loose stools 630
  • Feeling lightheaded 546
  • Difficulty breathing 529
Serious Warnings
atorvastatin

Atorvastatin can cause muscle problems, including muscle pain, tenderness, or weakness. In rare cases, this can lead to serious kidney damage. Tell your doctor right away if you have unexplained muscle pain, tenderness, or weakness, especially if you also have a fever or feel sick. Atorvastatin can also cause liver problems. Your doctor may do blood tests to check your liver before you start taking atorvastatin and while you are taking it.

niacin

There are no serious warnings listed for this medication.

Pregnancy
atorvastatin

Atorvastatin can harm an unborn baby. You should not take atorvastatin if you are pregnant or planning to become pregnant. It is also not recommended to breastfeed while taking atorvastatin.

niacin

This medication is for children. Consult a doctor for information about vitamin and fluoride supplements during pregnancy or breastfeeding.

Also Compare, Nearby Drugs

How to Read This atorvastatin vs niacin Comparison

atorvastatin is classified in the HMG-CoA Reductase Inhibitor (Statin) drug class, while niacin sits within the Vitamin B3 (Lipid-Modifying) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are split between OTC and prescription status, which affects access and supervision.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, atorvastatin has 59,536 submissions while niacin has 3,125. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known moderate interaction flagged in FDA labeling, attributed to taking high doses of niacin along with atorvastatin can increase your risk of developing severe muscle pain or damage.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between atorvastatin and niacin - always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.