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What Is Rosuvastatin?

Rosuvastatin is a prescription statin medication used to reduce elevated cholesterol levels and certain cardiovascular risks. It belongs to the HMG-CoA reductase inhibitor class and is associated with the brand name Crestor. Rosuvastatin lowers low-density lipoprotein cholesterol, commonly called LDL cholesterol, by reducing cholesterol production in the liver and increasing the removal of LDL from the bloodstream. It is used alongside diet and other lifestyle measures when appropriate. Rosuvastatin is available as oral tablets in several strengths. It can reduce the risk of certain cardiovascular events in eligible patients, but treatment requires attention to muscle symptoms, liver health, kidney function, and medication interactions.

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What Is Rosuvastatin?

Rosuvastatin is a prescription statin medication used to reduce elevated cholesterol levels and certain cardiovascular risks. It belongs to the HMG-CoA reductase inhibitor class and is associated with the brand name Crestor. Rosuvastatin lowers low-density lipoprotein cholesterol, commonly called LDL cholesterol, by reducing cholesterol production in the liver and increasing the removal of LDL from the bloodstream. It is used alongside diet and other lifestyle measures when appropriate. Rosuvastatin is available as oral tablets in several strengths. It can reduce the risk of certain cardiovascular events in eligible patients, but treatment requires attention to muscle symptoms, liver health, kidney function, and medication interactions.

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How Does Rosuvastatin Work?

Rosuvastatin inhibits HMG-CoA reductase, an enzyme involved in the liver's production of cholesterol. This reduces cholesterol synthesis inside liver cells, leading to increased expression of LDL receptors on their surfaces. These receptors remove LDL cholesterol from circulation, helping lower blood levels. Rosuvastatin can also reduce triglycerides and modestly increase high-density lipoprotein cholesterol in some patients. Lowering LDL cholesterol can reduce the development and progression of atherosclerotic cardiovascular disease. Its effects depend on the dose, baseline cholesterol levels, and individual response. Rosuvastatin does not immediately reverse established arterial narrowing or replace other cardiovascular risk-management measures.

What Conditions Does Rosuvastatin Treat?

Rosuvastatin is approved for several cholesterol-related conditions, including primary hyperlipidemia, mixed dyslipidemia, certain inherited forms of hypercholesterolemia, and selected other lipid disorders. It is also used to reduce the risk of major cardiovascular events in eligible adults. Pediatric indications include heterozygous familial hypercholesterolemia in patients aged eight years and older and homozygous familial hypercholesterolemia in patients aged seven years and older. Rosuvastatin may be used alongside other lipid-lowering treatments when indicated. A clinician evaluates cholesterol measurements, cardiovascular risk, kidney and liver function, and medication interactions before prescribing treatment. It is not a substitute for urgent treatment of a heart attack or stroke.

How Should Rosuvastatin Be Taken?

Rosuvastatin is generally taken orally once daily, with or without food, at any time of day. The recommended adult dosage range is 5 mg to 40 mg daily, with the 40 mg dose reserved for patients who do not achieve their treatment goals with 20 mg. Patients of Asian ancestry generally begin at 5 mg daily because of increased drug exposure. Patients with severe kidney impairment who are not receiving hemodialysis should begin at 5 mg daily and should not exceed 10 mg daily. Pediatric doses depend on age and the inherited cholesterol disorder. Certain medications require lower maximum doses or separate administration times. Cholesterol levels are monitored to assess response.

What Are the Side Effects and Warnings of Rosuvastatin?

Common adverse effects include headache, muscle pain, nausea, abdominal discomfort, and constipation. Serious risks include myopathy and rhabdomyolysis, which can cause severe muscle damage and kidney complications. Rosuvastatin can also cause liver injury and increases in blood glucose. Risk factors for muscle injury include higher doses, kidney impairment, older age, and certain interacting medications. Rosuvastatin should not be used in patients with acute liver failure or decompensated cirrhosis. Clinicians may assess liver enzymes and investigate unexplained muscle symptoms. Severe muscle pain or weakness, dark urine, yellowing of the skin, or persistent fatigue requires medical evaluation.

Common Questions About Rosuvastatin

Is rosuvastatin the same as Crestor?

Yes. Crestor is a brand name for rosuvastatin, an HMG-CoA reductase inhibitor used to lower cholesterol and manage cardiovascular risk.

Can rosuvastatin lower LDL cholesterol?

Yes. Rosuvastatin reduces cholesterol production in the liver and increases the removal of LDL cholesterol from the bloodstream.

Can children take rosuvastatin?

Yes. Rosuvastatin has specific pediatric approvals for inherited cholesterol disorders, with minimum ages and doses depending on the diagnosis.

Can rosuvastatin cause muscle damage?

Yes. Rare but serious muscle injury, including rhabdomyolysis, can occur. Unexplained severe muscle pain, weakness, or dark urine should be reported promptly.

References

DailyMed - CRESTOR (rosuvastatin) tablet, film coated. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=325a5d0e-9a72-4015-9fcd-1655fb504cee. Date Accessed November 4, 2026.

Rosuvastatin. LiverTox. https://www.ncbi.nlm.nih.gov/books/NBK548620/. Date Accessed November 4, 2026.

Rosuvastatin. MedlinePlus. https://medlineplus.gov/druginfo/meds/a603033.html. Date Accessed November 4, 2026.

Rosuvastatin. PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/Rosuvastatin. Date Accessed November 4, 2026.

Rosuvastatin. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK531465/. Date Accessed November 4, 2026.