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What Is Atorvastatin?

Atorvastatin is a prescription HMG-CoA reductase inhibitor, also called a statin. It lowers low-density lipoprotein cholesterol and is used for primary hyperlipidemia, inherited cholesterol disorders, high triglycerides, and selected cardiovascular risk reduction. Tablets come in 10 mg, 20 mg, 40 mg, and 80 mg strengths and are taken once daily.

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What Is Atorvastatin?

Atorvastatin is a prescription HMG-CoA reductase inhibitor, also called a statin. It lowers low-density lipoprotein cholesterol and is used for primary hyperlipidemia, inherited cholesterol disorders, high triglycerides, and selected cardiovascular risk reduction. Tablets come in 10 mg, 20 mg, 40 mg, and 80 mg strengths and are taken once daily.

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How Does Atorvastatin Lower LDL Cholesterol?

Atorvastatin inhibits HMG-CoA reductase, an enzyme involved in cholesterol production in the liver. Lower cholesterol synthesis increases the number of LDL receptors on liver cells, which removes more LDL cholesterol from the blood. The medicine also lowers triglycerides and can raise high-density lipoprotein cholesterol to a modest degree.

Who Is Treated With Atorvastatin?

Atorvastatin is used in adults with primary hyperlipidemia, hypertriglyceridemia, primary dysbetalipoproteinemia, and selected inherited cholesterol disorders. It also reduces cardiovascular event risk in specified adults. Pediatric use begins at age 10 for heterozygous or homozygous familial hypercholesterolemia under labeled dosing ranges.

How Are Atorvastatin Tablets Dosed?

Adults commonly start at 10 mg or 20 mg once daily, with a labeled range of 10 mg to 80 mg once daily. Tablets are taken at any time of day with or without food. Pediatric patients age 10 and older with heterozygous familial hypercholesterolemia use 10 mg to 20 mg daily. Higher ranges apply to homozygous familial hypercholesterolemia.

What Safety Problems Need Attention With Atorvastatin?

Serious risks include myopathy, rhabdomyolysis, immune-mediated necrotizing myopathy, and liver dysfunction. Blood sugar and hemoglobin A1c can increase during statin treatment. Muscle pain, tenderness, or weakness paired with fever or unusual tiredness needs prompt medical review. Atorvastatin is contraindicated in acute liver failure or decompensated cirrhosis.

Frequently Asked Questions About Atorvastatin

Is atorvastatin a statin?

Yes. Atorvastatin is an HMG-CoA reductase inhibitor in the statin drug class.

How often is atorvastatin taken?

Atorvastatin is taken once daily at any time of day, with or without food.

Can children take atorvastatin?

Yes. Current labeling includes patients age 10 and older with heterozygous or homozygous familial hypercholesterolemia.

Can atorvastatin cause muscle problems?

Yes. Myopathy and rhabdomyolysis are recognized risks, especially with certain interacting medicines or higher drug exposure.

References

Atorvastatin. MedlinePlus. https://medlineplus.gov/druginfo/meds/a600045.html. Date Accessed September 14, 2026.

Atorvastatin. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK430779/. Date Accessed September 14, 2026.

DailyMed - ATORVASTATIN CALCIUM tablet, film coated. https://www.dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=595ab888-6b55-4642-a32f-e8521821ed81. Date Accessed September 14, 2026.

FDALabel - LIPITOR (atorvastatin calcium). https://nctr-crs.fda.gov/fdalabel/ui/spl-summaries/criteria/110855. Date Accessed September 14, 2026.

LIPITOR (atorvastatin calcium) Patient Information. https://labeling.pfizer.com/ShowLabeling.aspx?format=PDF&id=587. Date Accessed September 14, 2026.