Atorvastatin vs Pravastatin
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Atorvastatin (Lipitor) and pravastatin (Pravachol) are both statins used to lower LDL cholesterol and reduce cardiovascular risk. Despite sharing the same drug class, they differ significantly in potency, metabolism, and drug interaction profiles.
Atorvastatin is a synthetic statin and one of the most potent available, while pravastatin is a naturally derived statin with a unique hydrophilic (water-soluble) profile. This difference in solubility has implications for side effects and drug interactions.
Both are available as affordable generics and have strong clinical trial evidence supporting their use in cardiovascular risk reduction. Your healthcare provider will weigh your specific needs when choosing between them.
Atorvastatin vs Pravastatin: Side-by-side comparison
| Category | Atorvastatin | Pravastatin |
|---|---|---|
| Drug Class | HMG-CoA reductase inhibitor (statin) | HMG-CoA reductase inhibitor (statin) |
| Brand Name | Lipitor | Pravachol |
| Max LDL-C Reduction | ~55-60% (80 mg) | ~34% (80 mg) |
| Solubility | Lipophilic | Hydrophilic |
| CYP450 Metabolism | Yes (CYP3A4) | No |
| Dosing Time | Any time of day | Bedtime recommended |
| Generic Available | Yes (since 2011) | Yes (since 2006) |
Efficacy: How well does each drug work?
Atorvastatin is substantially more potent than pravastatin. Atorvastatin 10 mg produces LDL-C reductions of approximately 39%, while pravastatin 10 mg achieves about 22%. At their respective maximum doses, atorvastatin 80 mg reduces LDL-C by roughly 55-60%, compared to approximately 34% for pravastatin 80 mg.
The PROVE-IT TIMI 22 trial compared intensive therapy (atorvastatin 80 mg) with moderate therapy (pravastatin 40 mg) in acute coronary syndrome patients. Atorvastatin 80 mg provided a significant 16% relative reduction in major cardiovascular events compared to pravastatin 40 mg, supporting the benefit of intensive statin therapy.
Pravastatin has demonstrated cardiovascular benefit in its own landmark trials, including WOSCOPS (primary prevention) and CARE (secondary prevention).
Side effects comparison
Both drugs share the statin class side effect profile including myalgia, elevated liver enzymes, and gastrointestinal symptoms. However, pravastatin is generally considered to have a more favorable side effect profile.
Pravastatin is hydrophilic (water-soluble) and does not readily cross cell membranes into muscle tissue, which may explain its lower rates of muscle-related side effects compared to lipophilic statins like atorvastatin. Some clinicians prefer pravastatin for patients who have experienced myalgia with other statins.
A key advantage of pravastatin is that it is not metabolized by the cytochrome P450 system (CYP3A4). This means pravastatin has significantly fewer drug interactions than atorvastatin, making it a safer choice for patients on multiple medications.
Cost comparison
Both drugs are available as inexpensive generics. Pravastatin has been generic since 2006, and atorvastatin since 2011. A 30-day supply of either typically costs $4-$15 at retail pharmacies.
Both are widely covered by insurance formularies. Cost is generally not a differentiating factor between these two medications.
Convenience and dosing
Both are taken once daily as oral tablets. Pravastatin is typically taken at bedtime due to its shorter half-life, while atorvastatin can be taken at any time of day. Neither requires administration with food.
Pravastatin has the advantage of far fewer drug interactions since it bypasses CYP450 metabolism, which simplifies medication management for patients taking multiple drugs.
Which is right for you?
Atorvastatin is preferred when aggressive LDL lowering is the primary goal, as it is substantially more potent. Pravastatin may be preferred for patients who have experienced muscle side effects with other statins, patients on multiple medications where drug interactions are a concern, or patients needing only moderate LDL reduction.
Pravastatin's hydrophilic nature and lack of CYP450 metabolism make it a uniquely well-tolerated option among statins. Discuss with your healthcare provider which medication best fits your cardiovascular risk profile and overall medication regimen.
Frequently asked questions
References
- [Regulatory] Lipitor (atorvastatin calcium) prescribing information. Pfizer Inc. https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/020702s056lbl.pdf Accessed 2026-02-28.
- [Regulatory] Pravachol (pravastatin sodium) prescribing information. Bristol-Myers Squibb. https://www.accessdata.fda.gov/drugsatfda_docs/label/2012/019898s065lbl.pdf Accessed 2026-02-28.
- [Clinical] Cannon CP, et al. Intensive versus moderate lipid lowering with statins after acute coronary syndromes (PROVE IT-TIMI 22). N Engl J Med. 2004;350(15):1495-1504. https://pubmed.ncbi.nlm.nih.gov/15007110/ Accessed 2026-02-28.
- [Clinical] Shepherd J, et al. Prevention of coronary heart disease with pravastatin in men with hypercholesterolemia (WOSCOPS). N Engl J Med. 1995;333(20):1301-1307. https://pubmed.ncbi.nlm.nih.gov/7566020/ Accessed 2026-02-28.
Written and fact-checked by PrescriptionDrugs.org Editorial Team
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