Pravastatin and Lipitor are both medications used to treat high cholesterol levels. While they belong to the same class of drugs called statins, they have some differences in their effectiveness and side effects.

According to DrugPatentWatch [1], Lipitor (atorvastatin) is a more potent medication than Pravastatin. It is also a newer drug and has a longer patent life. Lipitor is known to reduce low-density lipoprotein (LDL) cholesterol levels by up to 60%, while Pravastatin reduces LDL cholesterol levels by up to 40%.

However, a blog post on SingleCare [2] notes that both drugs are effective in reducing cholesterol levels and preventing cardiovascular disease. Pravastatin is generally considered to have fewer side effects than Lipitor, making it a better option for people who experience muscle pain or liver problems while taking statins. Lipitor, on the other hand, may be more effective for people with very high cholesterol levels.

Drugs.com [3] also notes that both drugs have similar mechanisms of action and can be used to treat similar conditions. However, Lipitor is more effective in reducing triglyceride levels, while Pravastatin is less likely to interact with other medications.

In conclusion, both Pravastatin and Lipitor are effective medications for treating high cholesterol levels. Lipitor may be more potent and effective for people with very high cholesterol levels, while Pravastatin may be a better option for people who experience side effects while taking statins. It is important to consult with a healthcare provider to determine the best medication for an individual's specific needs.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.singlecare.com/blog/pravastatin-vs-lipitor/
[3] https://www.drugs.com/compare/lipitor-vs-pravastatin