Is Lipitor or Crestor more effective at lowering LDL?

Rosuvastatin (Crestor) is more potent per milligram than atorvastatin (Lipitor). Milligram for milligram, rosuvastatin lowers LDL cholesterol more than atorvastatin. However, both drugs are available in high-intensity strengths capable of reducing LDL by 50% or more. The best statin for a given patient depends on their individual cholesterol targets, tolerability, and other medications — a prescriber should make this determination.

Which statin has fewer drug interactions — Lipitor or Crestor?

Crestor (rosuvastatin) generally has fewer drug interactions than Lipitor (atorvastatin). Atorvastatin is metabolized by the CYP3A4 enzyme system, which is inhibited by many common drugs including certain antibiotics, antifungals, and calcium channel blockers. Rosuvastatin does not rely on CYP3A4 for metabolism, so it avoids many of these interactions. Patients taking multiple medications may find rosuvastatin simpler to manage from an interaction standpoint.

Are Lipitor and Crestor available as generics?

Yes. Generic atorvastatin (the active ingredient in Lipitor) has been available in the United States since 2012 and is widely available at low cost. Generic rosuvastatin (Crestor) became broadly available in the US starting around 2016. Both generics are inexpensive at most pharmacies, and either may be available through $4 generic programs.

What is the difference between atorvastatin and rosuvastatin?

Atorvastatin (Lipitor) and rosuvastatin (Crestor) are both HMG-CoA reductase inhibitors (statins) that lower LDL cholesterol and reduce cardiovascular risk. The key differences are: rosuvastatin is more potent per milligram; atorvastatin is metabolized via CYP3A4, which creates more drug-drug interaction potential; rosuvastatin is slightly more hydrophilic (water-soluble) than atorvastatin. Both are taken once daily and both have been shown to reduce the risk of heart attack, stroke, and cardiovascular death.

Can I switch from Lipitor to Crestor?

Switching between atorvastatin and rosuvastatin is common in clinical practice. Because rosuvastatin is more potent per milligram, the equivalent LDL-lowering strength is achieved at a lower number of milligrams than atorvastatin. Your prescriber can determine the appropriate strength when switching. Never change your medication without speaking with your doctor or pharmacist first.

Do both statins cause muscle pain?

Muscle-related side effects (myalgia) are a class effect of all statins, including both atorvastatin and rosuvastatin. Most patients tolerate both drugs well. Severe muscle breakdown (rhabdomyolysis) is rare but serious with any statin. Some patients who experience muscle pain on one statin may tolerate another statin better. Report unexplained muscle pain or weakness to your prescriber promptly.

Lipitor vs Crestor: Statin Comparison

Head-to-Head

Full Comparison

Key attributes side by side. Advantage indicators reflect general clinical consensus; individual patient circumstances always apply.

Attribute	Lipitor (atorvastatin)	Crestor (rosuvastatin)
Drug class	HMG-CoA reductase inhibitor (statin)	HMG-CoA reductase inhibitor (statin)
Primary use	Lower LDL cholesterol; reduce risk of heart attack, stroke, and cardiovascular events	Lower LDL cholesterol; reduce risk of heart attack, stroke, and cardiovascular events
Potency per mg	High-intensity statin; LDL reductions of 43–57% at higher strengths ■ Both high-intensity capable	Most potent statin per milligram; greater LDL lowering at equivalent strengths ▲ Higher potency per mg
Metabolism	Extensively metabolized via CYP3A4 liver enzyme More interaction potential	Minimally metabolized; does not rely on CYP3A4 ▲ Fewer CYP3A4 interactions
Drug interactions	More interactions due to CYP3A4 pathway — caution with certain antibiotics, antifungals, some calcium channel blockers, grapefruit juice	Fewer interactions overall; still caution with some antacids and certain immunosuppressants ▲ Simpler interaction profile
Available strengths	10 mg · 20 mg · 40 mg · 80 mg tablets	5 mg · 10 mg · 20 mg · 40 mg tablets
Dosing frequency	Once daily (any time of day)	Once daily (any time of day)
Solubility	Lipophilic (fat-soluble); crosses blood-brain barrier more readily	Relatively hydrophilic (water-soluble); more selective for the liver ▲ More liver-selective
Generic available	Yes — generic atorvastatin widely available since 2012 ▲ Longer generic history	Yes — generic rosuvastatin available in US since ~2016 ■ Also generic
Brand manufacturer	Pfizer (original brand)	AstraZeneca (original brand)
Approval year (US)	1996	2003
Cost (generic)	Inexpensive; often available through $4 generic programs	Inexpensive; widely available at generic pricing
Muscle side effects	Myalgia possible (statin class effect); generally well tolerated	Myalgia possible (statin class effect); generally well tolerated
Key landmark trial	TNT, CARDS, ASCOT-LLA	JUPITER, METEOR, ASTEROID
Best for	High-intensity LDL lowering; most prescribed in US; robust long-term safety data	Patients on many medications (fewer CYP3A4 interactions); highest potency per mg needed ▲ Edge in polypharmacy patients

What Sets Them Apart

Key Differences

Potency per milligram

Rosuvastatin is the most potent statin per milligram of any approved drug in its class. It achieves greater LDL reduction at a numerically lower strength than atorvastatin. For patients who need maximum LDL lowering, this difference can be clinically meaningful.

LipitorHigh-intensity at 40–80 mg

CrestorHigh-intensity at 20–40 mg

CYP3A4 Metabolism

Atorvastatin is a substrate of the CYP3A4 enzyme. Many common drugs — including certain antibiotics (erythromycin, clarithromycin), antifungals (itraconazole), and some HIV medications — inhibit CYP3A4 and can raise atorvastatin levels, increasing the risk of side effects. Rosuvastatin avoids this pathway entirely.

LipitorCYP3A4 substrate — more interactions

CrestorNot a CYP3A4 substrate

Polypharmacy patients

For patients who take many medications, rosuvastatin's simpler interaction profile often makes it easier to manage. Patients on complex regimens for HIV, transplant, or certain heart conditions may be better candidates for rosuvastatin, though a pharmacist or prescriber should always review the full medication list.

LipitorReview CYP3A4 interactions carefully

CrestorGenerally preferred in polypharmacy

Water vs. fat solubility

Atorvastatin is lipophilic, meaning it dissolves more readily in fat and can cross the blood-brain barrier. Rosuvastatin is more hydrophilic (water-soluble) and more selectively taken up by liver cells. Whether this difference affects tolerability in practice is an area of ongoing research.

LipitorLipophilic

CrestorHydrophilic — more liver-selective

Track record & data volume

Atorvastatin was approved in the US in 1996, giving it a longer track record and a larger body of real-world safety data. It became the world's best-selling drug of all time before its patent expired. Rosuvastatin was approved in 2003 and also has extensive clinical trial data, including the landmark JUPITER trial.

LipitorApproved 1996 — more long-term data

CrestorApproved 2003 — large trial evidence

Grapefruit interaction

Because atorvastatin is metabolized by CYP3A4, consuming large amounts of grapefruit or grapefruit juice can inhibit that enzyme and raise drug levels. Rosuvastatin does not interact with grapefruit in the same way, making it the simpler option for patients who regularly consume grapefruit products.

LipitorAvoid large amounts of grapefruit

CrestorNo grapefruit interaction

What They Share

Common Ground

🫀

Same mechanism Both inhibit HMG-CoA reductase, the enzyme that controls cholesterol production in the liver.

📉

LDL lowering Both reduce LDL-C, total cholesterol, and triglycerides. Both also modestly raise HDL ("good") cholesterol.

🛡

Cardiovascular protection Both have robust clinical trial evidence showing reduction in heart attack, stroke, and cardiovascular death.

📅

Once-daily dosing Both are taken once a day, at any time, with or without food.

💊

Generic versions available Both have inexpensive generic equivalents widely available in the US and internationally.

⚡

Muscle-related risk Myalgia (muscle pain) and rare rhabdomyolysis are class effects of all statins, including both drugs.

🔬

Liver monitoring Both can rarely affect liver enzymes. Periodic liver function monitoring may be recommended depending on clinical context.

🤰

Contraindicated in pregnancy All statins, including atorvastatin and rosuvastatin, are contraindicated during pregnancy.

Formulations

Available Strengths

Tablet strengths approved in the United States. Specific strength availability may vary by country and manufacturer. This is not dosing guidance — your prescriber determines the appropriate strength.

Lipitor / atorvastatin

10 mg 20 mg 40 mg 80 mg

Crestor / rosuvastatin

5 mg 10 mg 20 mg 40 mg

Frequently Asked Questions

Common Questions

Rosuvastatin (Crestor) is more potent per milligram than atorvastatin (Lipitor). Milligram for milligram, rosuvastatin lowers LDL cholesterol more than atorvastatin. However, both drugs are available in high-intensity strengths capable of reducing LDL by 50% or more. The best statin for a given patient depends on their individual cholesterol targets, tolerability, and other medications — a prescriber should make this determination.
Crestor (rosuvastatin) generally has fewer drug interactions than Lipitor (atorvastatin). Atorvastatin is metabolized by the CYP3A4 enzyme system, which is inhibited by many common drugs including certain antibiotics, antifungals, and calcium channel blockers. Rosuvastatin does not rely on CYP3A4 for metabolism, so it avoids many of these interactions. Patients taking multiple medications may find rosuvastatin simpler to manage from an interaction standpoint.
Yes. Generic atorvastatin (the active ingredient in Lipitor) has been available in the United States since 2012 and is widely available at low cost. Generic rosuvastatin (Crestor) became broadly available in the US starting around 2016. Both generics are inexpensive at most pharmacies, and either may be available through $4 generic programs.
Atorvastatin (Lipitor) and rosuvastatin (Crestor) are both HMG-CoA reductase inhibitors (statins) that lower LDL cholesterol and reduce cardiovascular risk. The key differences are: rosuvastatin is more potent per milligram; atorvastatin is metabolized via CYP3A4, which creates more drug-drug interaction potential; rosuvastatin is slightly more hydrophilic (water-soluble) than atorvastatin. Both are taken once daily and both have been shown to reduce the risk of heart attack, stroke, and cardiovascular death.
Switching between atorvastatin and rosuvastatin is common in clinical practice. Because rosuvastatin is more potent per milligram, the equivalent LDL-lowering effect is achieved at a lower number of milligrams. Your prescriber can determine the appropriate strength when switching. Never change your medication without speaking with your doctor or pharmacist first.
Muscle-related side effects (myalgia) are a class effect of all statins, including both atorvastatin and rosuvastatin. Most patients tolerate both drugs well. Severe muscle breakdown (rhabdomyolysis) is rare but serious with any statin. Some patients who experience muscle pain on one statin may tolerate another statin better. Report unexplained muscle pain or weakness to your prescriber promptly.

Related Comparisons

Full Comparison

Key Differences

Common Ground

Available Strengths

Common Questions

More Drug Comparisons