Crestor

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Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Crestor

Property Description
Active ingredient Rosuvastatin calcium
Form Oral, film-coated tablet
Pharmacological class HMG-CoA Reductase Inhibitor (Statin)
Common purpose To manage high blood cholesterol levels
Origin Synthetic

What Type of Medicine is Crestor (Rosuvastatin)?

Crestor is the brand name for the generic, prescription-only medicine Rosuvastatin, which is a synthetic compound classified as an HMG-CoA Reductase Inhibitor—a group commonly known as statins. The classification establishes the medicine's foundational role as an antihyperlipidemic agent, meaning its primary function is to address elevated lipid levels in the bloodstream. Rosuvastatin is used for its cholesterol-lowering effects and is designed as a single-ingredient oral medication, which focuses treatment exclusively on lipid modification.

Composition and General Purpose of the Tablet

The active therapeutic substance in this medicine is Rosuvastatin calcium, formulated as an oral film-coated tablet intended for systemic effect. Rosuvastatin's general purpose is to improve a patient's overall blood lipid profile by targeting internal cholesterol production. This is achieved by the drug's action to inhibit the HMG-CoA reductase enzyme in the liver. Rosuvastatin acts to reduce LDL-C (low-density lipoprotein cholesterol). This mechanism helps lower the harmful cholesterol responsible for plaque buildup in individuals with hypercholesterolemia, thereby assisting in the reduction of overall cardiovascular risk.

Regulatory References

  1. review published by the National Institutes of Health (NIH)
  2. NIH StatPearls: Rosuvastatin

What side effects are possible with Crestor?

Possible Side Effects and Safety Information

Crestor (rosuvastatin) is a prescription medicine, and its use is associated with a range of possible side effects and important safety warnings detailed in regulatory documents.

Common Side Effects

The most frequent adverse reactions reported in clinical trials (incidence ge2% and greater than placebo) typically include headache, myalgia (muscle pain), abdominal pain, asthenia (weakness/fatigue), and nausea.

Serious Adverse Reactions and Warnings

Rosuvastatin may cause serious side effects, primarily affecting the muscles and liver. These include:

  • Myopathy and Rhabdomyolysis: This is a serious, rare risk of muscle damage that may lead to acute renal failure and, in extremely rare cases, death. The risk is higher with the 40 mg dose, advanced age (ge65 years), and pre-existing conditions like uncontrolled hypothyroidism or renal impairment.
  • Hepatic Dysfunction: Increases in serum transaminase levels have occurred. While typically transient, rare reports of fatal and non-fatal hepatic failure have been documented. Liver enzyme testing may be done before starting therapy and as clinically indicated thereafter.
  • Increased Blood Sugar (Glucose) Levels: Statin use, including Crestor, has been associated with increases in HbA1c and fasting serum glucose levels.
  • Proteinuria and Hematuria: The presence of protein and/or blood in the urine has been reported, often transient and dose-related.

Contraindications and Restrictions

Crestor is contraindicated in individuals with active liver disease (including unexplained persistent elevation of liver transaminase levels) and in those with known hypersensitivity to any component of the product. It must not be used by women who are pregnant or who may become pregnant, or by nursing mothers.

Concomitant use with certain drugs, such as Cyclosporine, requires a restricted maximum dose of Crestor due to the increased risk of muscle-related adverse reactions.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Rosuvastatin (Crestor) indicates that the clinical effects of overexposure are anticipated to be an exaggeration of known adverse effects. The primary concern is musculoskeletal toxicity, which may manifest as persistent or unexplained muscle pain, weakness, or tenderness. Overdosage may also be indicated by official laboratory findings such as elevated Creatine Phosphokinase (CPK) and liver transaminases.


Severe Outcomes and Action Required

The most serious, life-threatening outcomes documented include Rhabdomyolysis (severe muscle breakdown) and the resulting Acute Renal Failure (kidney damage). If an overdose is suspected, or if signs of severe muscle injury appear, immediate medical attention must be sought as mandated by regulatory authorities. Patients should promptly report any unexplained muscle symptoms, especially if accompanied by malaise.


Management and Constraints

Management of Rosuvastatin overdosage is strictly symptomatic and supportive. Regulatory documents confirm that no specific antidote is known, and hemodialysis is not anticipated to be effective due to the drug's high protein binding. Necessary procedures include continuous monitoring of Creatine Kinase (CPK) levels and liver function tests to assess the severity of muscle and hepatic injury. The risk of these serious skeletal muscle effects is explicitly noted to be increased in patients with severe renal impairment and those of advanced age (ge 65 years).

Therapeutic Uses of Crestor

What Crestor Treats: Main Uses and Benefits

Rosuvastatin addresses silent, high-risk cardiovascular risk factors rather than symptoms, serving as a long-term preventative therapy. Its core benefit is related to addressing internal patterns of systemic imbalance associated with cardiovascular risk. This medication is used as part of management to help reduce the risk of heart attack and stroke.

The medicine is used for managing conditions such as primary hyperlipidemia, mixed dyslipidemia, and elevated triglycerides, and it is relevant for addressing Familial Hypercholesterolemia (HeFH and HoFH) in both adults and eligible pediatric patients. This therapeutic approach contributes to reducing the probability of suffering a heart attack or stroke and assists with managing the progression of atherosclerosis.

“This therapy helps to manage the underlying risk by addressing the abnormal blood lipid patterns that often precede a major cardiovascular event.”

It is commonly applied in scenarios where patients are at high risk of a cardiovascular event or where lifestyle changes alone have not sufficiently managed the elevated lipid levels. By addressing the underlying lipid disorder, the medication provides support that helps ease the overall long-term symptom burden associated with vascular disease.


Quick Fact: Relief for Elevated Atherogenic Lipids The medicine is commonly used to help with managing high levels of LDL-C and Apolipoprotein B (ApoB), which are critical markers of systemic cardiovascular risk.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who can and cannot use Crestor?

The eligibility profile for Crestor (rosuvastatin) is strictly defined by official contraindications and population-specific restrictions documented in regulatory labeling.

Populations for Whom Use is Contraindicated

Category Status Details (Official Documentation)
Reproductive Status Contraindicated Women who are pregnant, nursing mothers, or women of childbearing potential not using effective contraception.
Liver Health Contraindicated Patients with active liver disease, including unexplained, persistent elevations of liver enzymes (transaminases > 3 imes ULN).
Drug Co-use Contraindicated Patients receiving ciclosporin (Cyclosporine) or certain other strong inhibitor combinations.
General Health Contraindicated Patients with known hypersensitivity to any component of the formulation or those with myopathy (SmPC).

Age and Conditional Use Restrictions

Eligibility is determined by age and specific physiological conditions:

  • Pediatric Eligibility: The medicine is approved for children with certain forms of high cholesterol (HoFH ge 7 years; HeFH ge 6 or 8 years, depending on the region/label). Use is not recommended in children under these specific age thresholds.
  • Renal Impairment: Patients with severe renal impairment (creatinine clearance < 30 mL/min) must not use the medicine at any dose. The 40 mg dose is contraindicated in patients with moderate renal impairment.
  • Asian Patients: Due to increased rosuvastatin exposure, the 40 mg dose is contraindicated, and a low starting dose is recommended.
  • Myopathy Risk: The 40 mg dose is contraindicated in patients with pre-disposing factors for muscle toxicity, such as advanced age (ge 65 years), uncontrolled hypothyroidism, and previous muscle problems with a statin or fibrate.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Rosuvastatin's official interaction profile is structured around two primary concerns: the significant increase in drug exposure and the risk of additive pharmacodynamic effects.

Interaction Classifications

The regulatory label identifies specific drug combinations as having severe restrictions:

  • Contraindicated Combinations: Co-administration with Cyclosporine is explicitly contraindicated by regulatory agencies. Use with certain anti-Hepatitis C virus (HCV) combinations (e.g., Sofosbuvir/velpatasvir/voxilaprevir) is also contraindicated or strongly not recommended due to significantly increased plasma concentrations.

  • Exposure-Modifying Interactions: Rosuvastatin is a substrate for the drug transporters OATP1B1 and BCRP. Inhibition of these transporters by antivirals (e.g., Lopinavir/Ritonavir) or other specific agents results in elevated rosuvastatin systemic exposure, necessitating mandatory maximum dose restrictions.

Pharmacodynamic and Substance Interactions

Concomitant use with other lipid-lowering agents such as Fibrates (e.g., Gemfibrozil) or high-dose Niacin (ge 1 g/day) increases the officially documented risk of myopathy and rhabdomyolysis. When co-administered with Coumarin Anticoagulants (e.g., Warfarin), close monitoring is required as the combination may prolong the International Normalized Ratio (INR).

Regarding other products, Rosuvastatin must be administered at least 2 hours after antacids containing aluminum and magnesium hydroxide to maintain drug absorption. Caution is noted for use in patients consuming substantial quantities of alcohol due to a potential increase in the risk of hepatic injury.

Mechanism of Action

The action of Rosuvastatin is primarily focused on the liver, where it acts as a high-affinity, competitive inhibitor of the enzyme HMG-CoA Reductase. This enzyme controls the rate-limiting step in the Mevalonate pathway, the principal route for de novo cholesterol synthesis in hepatocytes. By restricting this pathway, the drug causes a critical reduction in the internal supply of cellular cholesterol.

This cholesterol deficit triggers a compensatory cascade: the transcriptional upregulation of Low-Density Lipoprotein (LDL) Receptors on the surface of the liver cells. These new receptors increase the liver's capacity to bind and remove circulating LDL-C particles from the bloodstream, leading to a subsequent decrease in systemic lipid levels.

Separately, the inhibition of the Mevalonate pathway also restricts the production of isoprenoid intermediates. This interference modulates signaling proteins (e.g., Rho, Rac) and contributes to the modulation of vascular inflammation and endothelial function within the blood vessel walls.

Dosage and Administration Information

Administration Scope

Field General Statement
Route of administration The medicine is administered orally.
Dosing schedule (Adults) The adult dose range is 5 mg to 40 mg once daily. The usual starting dose is 10 mg or 20 mg. The 40 mg maximum dose is specifically reserved for patients who have not achieved their lipid goal with the 20 mg dose.
Timing in relation to meals The dose can be taken with or without food.
Preparation requirements The medicine is supplied as a film-coated tablet and should be swallowed whole.
Age-group administration rules Pediatric (10–17 years) dose: 5 mg to 20 mg once daily for Heterozygous Familial Hypercholesterolemia (HeFH). A 5 mg starting dose is recommended in patients over 70 years.
Missed-dose rules If a dose is missed, patients should not take an extra dose and should resume the regular dosing schedule with the next dose.
Special procedural conditions The single daily dose can be taken at any time of day. Dose adjustments are made based on lipid analysis, typically at intervals of 2 to 4 weeks or more. Asian patients should consider a 5 mg starting dose. Severe Renal Impairment: The maximum dose should not exceed 10 mg once daily.

Instruction Classifications (High-Level)

Classification Description
Administration method type Oral
Frequency pattern Once daily
Dosing constraints The maximum dose and starting dose are restricted for certain patient populations, such as those with severe renal impairment and individuals of Asian descent.

Resulting Procedural Structure

The use protocol for rosuvastatin establishes a framework: take the specified film-coated tablet orally and once daily at any time. The starting dose is determined according to clinical criteria, with subsequent dosage adjustments performed at intervals of four weeks or more, and only up to the recommended maximum 40 mg dose. This protocol maintains specific limits, such as a 5 mg starting dose for certain populations, to define the standardized use pattern.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Crestor (Rosuvastatin)

The following summary describes the type of scientific research that has explored Rosuvastatin, the outcomes that were measured in those studies, and the limitations or uncertainties documented in the research. This overview is based on findings from official sources and major peer-reviewed clinical trials.


The Research Foundation for Blood Lipid Management

Clinical studies focusing on Rosuvastatin's evaluation in relation to blood lipids have been conducted using Randomized Controlled Trials (RCTs). Researchers monitored how levels of harmful cholesterol, known as Low-Density Lipoprotein Cholesterol (LDL-C), as well as triglycerides and other lipid markers, changed during the study period. Studies explored whether these measured shifts in biomarkers were associated with participants achieving pre-defined goals for lipid concentrations. However, these specific trials—which focus primarily on changes in blood markers—do not provide primary data on long-term clinical outcomes such as heart attack or stroke prevention, which rely on separate, longer trials.


Evidence from Large-Scale Cardiovascular Prevention Trials

Separate from the lipid-only research, large-scale, long-term studies was studied for the primary evaluation of Rosuvastatin in adults who were categorized as being at high risk for a cardiovascular event but had no prior history of heart disease. The research examined serious long-term outcomes, called Major Adverse Cardiovascular Events (MACE). Trials reported on the frequency of the composite MACE outcome between the Rosuvastatin group and the placebo group over the study period. Because results apply only to the populations studied, the findings are most strongly associated with patients matching the specific high-risk and high-inflammation profiles that met the entry criteria for the major clinical trials.


Evidence Gaps and Areas of Scientific Uncertainty

While substantial data are available, the evidence highlights what is known — and what is still uncertain — about this medicine. There is limited information for long-term outcomes exceeding eight years, and research is ongoing. Additionally, the results derived from imaging studies (plaque measurement) are based on physical changes, and the direct link between measured changes in plaque volume and the long-term risk reduction of a major clinical event is an area where scientific inquiry continues.

Key Studies & References

  1. JUPITER - Crestor 20mg Versus Placebo in Prevention of Cardiovascular (CV) Events (NCT00239681)
  2. Rosuvastatin versus atorvastatin treatment in adults with coronary artery disease: secondary analysis of the randomised LODESTAR trial

Frequently Asked Questions (FAQ)

Common questions about Crestor (FAQ)

Q: Does Rosuvastatin affect the kidneys?

Official information notes that severe kidney impairment (renal impairment) is a restriction for using this medication and may necessitate dose adjustment or restriction. Additionally, regulatory documents report that some patients in studies experienced protein and/or blood in the urine (Proteinuria and Hematuria) as possible adverse reactions that are often transient and dose-related.


Q: Are there long-term clinical trial results that show Rosuvastatin prevents heart attacks?

Clinical studies and official information indicate that Rosuvastatin has been evaluated for the primary prevention of cardiovascular disease in high-risk patients. The drug is indicated for reducing the risk of major adverse cardiovascular events (MACE), which include nonfatal myocardial infarction (heart attack) and nonfatal stroke, in specific patient populations.


Q: What are the most common side effects?

Based on official clinical trial data, common adverse reactions that were reported by patients at an incidence of 2% or more include headache, nausea, myalgia (muscle pain), asthenia (weakness or fatigue), and constipation.


Q: Why can’t I take Rosuvastatin if I'm pregnant?

Rosuvastatin is contraindicated (not allowed) during pregnancy. The contraindication is based on the drug's mechanism of action, as the cholesterol components the drug limits are considered necessary for normal fetal development.


Q: How long does Rosuvastatin take to work?

The official product information specifies that lipid levels are typically analyzed within 2 to 4 weeks after treatment begins or after a dosage change. This interval is used to assess the response to the treatment.


Q: Can I drink grapefruit juice while taking this drug?

Grapefruit or grapefruit juice is not listed in the official regulatory drug interaction section for Rosuvastatin. This is because the medication is primarily processed by a different liver enzyme (CYP2C9) than the one typically affected by grapefruit juice (CYP3A4).


Q: Is there a generic version of Crestor available?

Yes, the active ingredient in Crestor is Rosuvastatin calcium. Official drug documentation confirms that Rosuvastatin calcium is available in generic forms.

How should Crestor be stored and disposed of?

Official Storage and Disposal Requirements for Crestor (Rosuvastatin)

Official regulatory information defines the specific conditions under which Crestor tablets must be stored and disposed of to maintain quality and safety.

Storage Constraints

The medicine must be kept at controlled room temperature (generally below 30 C or 86 F) and protected from moisture and light.

Requirement Official Stipulation
Temperature Store below 30 C (Do not freeze)
Protection Keep in original, tightly closed container
Safety Keep out of the reach of children

Disposal Instructions

Crestor should not be flushed down the toilet or poured down a drain. Unused or expired medication must be disposed of through a drug take-back program or by following a specific household disposal method. The product is officially classified as toxic to aquatic life; therefore, environmental release must be avoided.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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