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Two medicines, side by side

Simvastatin vs niacin

Simvastatin and niacin are both labeled for heart attack and coronary artery disease, high cholesterol and high triglycerides. Drugs@FDA records approvals of simvastatin since 1991 and of niacin since 1957. Pharmacies paid $0.0321 per simvastatin 20 mg tablet and $0.193 per niacin ER 500 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. In FDA's classes, simvastatin is a hmg-coa reductase inhibitor and niacin a nicotinic acid.

Check it at the source: the simvastatin FDA label on DailyMed (effective March 28, 2025); the niacin FDA label on DailyMed (effective February 14, 2023).

Highlights of the simvastatin record

Simvastatin (Zocor) · label of March 28, 2025

Used for

From the label: indications

ZOCOR ® is indicated: To reduce the risk of total mortality by reducing risk of coronary heart disease death, non-fatal myocardial infarction and stroke, and the need for coronary and non-coronary revascularization procedures in adults with established coronary heart disease, cerebrovascular disease, peripheral vascular disease, and/or diabetes, who are at high risk of coronary heart disease events. […]

On the market

Earliest approval on file
December 23, 1991
Generic labelers
27 labelers
Pharmacy cost
$0.0321 per tablet

Supply and safety

Shortage
No current entry
Recalls
26

Highlights of the niacin record

Niacin (Niacor) · label of February 14, 2023

Used for

From the label: indications

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. […]

On the market

Earliest approval on file
July 24, 1957
Generic labelers
13 labelers
Pharmacy cost
$0.193 per tablet

Supply and safety

Shortage
No current entry
Recalls
7

Source: FDA drug labels via openFDA (Simvastatin label of March 28, 2025, Niacin label of February 14, 2023); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do simvastatin and niacin differ on the record?

In FDA's classes, simvastatin is a hmg-coa reductase inhibitor and niacin a nicotinic acid.

How each works, in its label's words: Simvastatin, “Simvastatin is a prodrug and is hydrolyzed to its active β-hydroxyacid form, simvastatin acid, after administration.”; Niacin, “The mechanism by which niacin alters lipid profiles has not been well defined.”

Generics: simvastatin since 2006; niacin since 1972 (Drugs@FDA).

SimvastatinNiacin
Labeled forHeart attack and coronary artery disease, High cholesterol, High triglyceridesHigh cholesterol, Heart attack and coronary artery disease, High triglycerides
Pharmacologic classHMG-CoA Reductase InhibitorNicotinic Acid
How it works (label)Simvastatin is a prodrug and is hydrolyzed to its active β-hydroxyacid form, simvastatin acid, after administration.The mechanism by which niacin alters lipid profiles has not been well defined.
Half-life (label)n/an/a
Earliest approval on file (Drugs@FDA)December 23, 1991July 24, 1957
First generic approvedJune 23, 2006September 15, 1972
Generic labelers (NDC)27 labelers13 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.0321 per tablet (Simvastatin 20 mg tablet)$0.193 per tablet (Niacin ER 500 mg tablet)
12-month price change+5%+17%
Boxed warningNoNo
Shortage nowNo current entryNo current entry
Recalls recorded267
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)248,72811,548
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

Do their labels mention each other?

Simvastatin label, drug interactions

Niacin Clinical Impact: Cases of myopathy and rhabdomyolysis have been observed with concomitant use of lipid modifying dosages of niacin-containing products (≥1 gram/day niacin) with ZOCOR. The risk of myopathy is greater in Chinese patients. … Intervention: Concomitant use of ZOCOR with lipid-modifying dosages of niacin is not recommended in Chinese patients [see ]. For non-Chinese patients, consider if the benefit of using lipid-modifying doses of niacin …

Simvastatin label, warnings and precautions

Lipid modifying doses (≥1 gram/day) of niacin, fibrates, colchicine, and grapefruit juice may also increase the risk of myopathy and rhabdomyolysis [see Drug Interactions (7.1) ].

Niacin label, warnings and precautions

All participants received simvastatin, 40 to 80 mg per day, plus ezetimibe 10 mg per day if needed, to maintain an LDL-C level of 40 to 80 mg/dL, and were randomized to receive niacin extended-release tablets 1,500 to 2,000 mg/day (n=1718) or matching placebo (IR Niacin, 100 to 150 mg, n=1696).

What both labels say about taking them together

Source: FDA drug labels via openFDA

What next?

Alternatives to simvastatin
every medicine labeled for the same conditions