Lipitor and Pravachol are both medications used to lower cholesterol levels in the body. Lipitor is a brand name for atorvastatin, while Pravachol is a brand name for pravastatin. Both medications belong to a class of drugs called statins, which work by blocking the enzyme responsible for producing cholesterol in the liver [2].

In terms of potency, studies have shown that Lipitor is generally more effective at reducing cholesterol levels than Pravachol. One study compared the two medications in patients with high cholesterol and found that Lipitor was more effective at reducing LDL (bad) cholesterol levels than Pravachol [3]. Another study found that Lipitor was more effective at reducing the risk of cardiovascular events, such as heart attack and stroke, compared to Pravachol [1].

However, it is important to note that the effectiveness of these medications can vary depending on the individual. Some people may respond better to Pravachol than Lipitor, and vice versa. Additionally, both medications can have side effects, such as muscle pain and liver damage, and may interact with other medications [2].

Ultimately, the choice between Lipitor and Pravachol should be made in consultation with a healthcare provider, taking into account individual health factors and potential side effects.

Sources:
[1] https://pubmed.ncbi.nlm.nih.gov/14697462/
[2] https://www.singlecare.com/blog/pravastatin-vs-lipitor/
[3] https://www.drugpatentwatch.com/p/tradename/LIPITOR