alirocumab vs niacin

PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.

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

Drug Class
alirocumab PCSK9 Inhibitor
niacin Vitamin B3 (Lipid-Modifying)
Type
alirocumab Prescription
niacin Over-the-Counter
Summary
alirocumab

Praluent is a medicine that can lower cholesterol. It can also lower the risk of heart problems like heart attack or stroke in some adults.

niacin

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

What It Treats
alirocumab

Praluent is used to lower LDL cholesterol (bad cholesterol). It is used along with diet and exercise in adults with high cholesterol. It is also used in adults and children 8 years and older who have a genetic condition that causes high cholesterol.

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
alirocumab

Praluent is a PCSK9 inhibitor. It works by blocking a protein in your body called PCSK9. Blocking this protein helps your body remove LDL cholesterol from your blood.

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
alirocumab
  • Injection site reactions (redness, itching, swelling, pain)
  • Flu
  • Muscle pain
  • Diarrhea
niacin

No common side effects listed.

FAERS Reports
alirocumab
  • Myalgia 1,655
  • Product Dose Omission 1,364
  • Injection Site Pain 1,278
  • Muscle Spasms 1,162
  • Arthralgia 1,053
niacin
  • Fatigue 750
  • Nausea 671
  • Diarrhoea 630
  • Dizziness 546
  • Dyspnoea 530
Serious Warnings
alirocumab

Serious allergic reactions have happened with Praluent, sometimes requiring hospitalization. If you have signs of a serious allergic reaction, stop using Praluent and get medical help right away.

niacin

There are no serious warnings listed for this medication.

Pregnancy
alirocumab

There is not enough information about Praluent use during pregnancy to know if it is safe. If you are pregnant or plan to become pregnant, talk to your doctor before using Praluent.

niacin

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

Also Compare, Nearby Drugs

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How to Read This alirocumab vs niacin Comparison

alirocumab is classified in the PCSK9 Inhibitor 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, alirocumab has 6,512 submissions while niacin has 3,127. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for alirocumab or niacin.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.