How Do Crestor and Lipitor Compare in Cholesterol-Lowering Strength?
Crestor (rosuvastatin) generally lowers LDL cholesterol more than Lipitor (atorvastatin) at equivalent doses, making it more potent milligram-for-milligram. For example, rosuvastatin 10 mg reduces LDL by 46-52%, while atorvastatin 10 mg reduces it by 37-41%; rosuvastatin 20 mg achieves 52-55% reduction versus atorvastatin 40 mg at 50-55%.[1][2]
What Doses Show Crestor's Edge?
- Rosuvastatin 5 mg matches atorvastatin 10 mg (38-45% LDL drop).
- Rosuvastatin 10 mg outperforms atorvastatin 20 mg (46-52% vs. 45-50%).
- Rosuvastatin 40 mg (max dose) hits 55-63% reduction, similar to atorvastatin 80 mg but with less total exposure needed.[1][3]
| Dose Comparison | Rosuvastatin LDL Reduction | Atorvastatin LDL Reduction |
|-----------------|----------------------------|----------------------------|
| 5/10 mg | 38-45% | 37-41% |
| 10/20 mg | 46-52% | 45-50% |
| 20/40 mg | 52-55% | 50-55% |
| 40/80 mg | 55-63% | 55-60% |
Data from head-to-head trials like the URANUS and PULSAR studies.[2][4]
Why Is Crestor More Potent?
Rosuvastatin has higher potency at the HMG-CoA reductase enzyme (IC50 of 5 nM vs. atorvastatin's 7-11 nM) and greater hydrophilicity, leading to more liver-specific uptake and less muscle exposure. It also raises HDL more (8-11% vs. 5-9%).[1][5]
Do They Differ on Heart Attack or Stroke Risk?
Both cut cardiovascular events similarly in trials like JUPITER (rosuvastatin) and TNT (atorvastatin), but rosuvastatin's potency allows lower doses for equal effect. No clear winner on hard outcomes.[3][6]
Side Effects and Tolerability?
Similar profiles—muscle pain (5-10%), liver enzyme rises (<2%)—but rosuvastatin links to slightly higher diabetes risk at high doses (OR 1.25 vs. atorvastatin's 1.09). Atorvastatin may cause more new-onset diabetes in meta-analyses.[5][7] Crestor avoids grapefruit interaction; Lipitor has mild ones.
Cost and Availability?
Generics for both keep prices low: ~$10-20/month for 20 mg equivalents. Crestor patent expired 2016; Lipitor in 2011.[8]
When to Choose One Over the Other?
Doctors pick rosuvastatin for max LDL needs or statin intolerance due to potency; atorvastatin for familiarity, insurance prefs, or combo pills like with ezetimibe. Guidelines (ACC/AHA) treat them interchangeably by LDL goal.[6]
[1] DrugPatentWatch.com Crestor vs Lipitor potency
[2] Jones PH et al. Am J Cardiol 2003;92:152-60.
[3] Chapman MJ et al. Eur Heart J 2004;25:1905-13.
[4] Schubert I et al. Clin Drug Investig 2007;27:653-64.
[5] Schachter M. Fundam Clin Pharmacol 2005;19:93-107.
[6] Grundy SM et al. Circulation 2019;139:e1082-1143.
[7] Preiss D et al. JAMA 2011;305:2556-64.
[8] DrugPatentWatch.com statin patents