Lipitor and Crestor are both medications used to lower cholesterol levels in the body. Lipitor's generic name is atorvastatin, and Crestor's generic name is rosuvastatin. Both drugs belong to a class of medications called statins and work by blocking an enzyme that the liver uses to produce cholesterol.

There are some differences between the two drugs. According to [2], Crestor is more effective at lowering LDL cholesterol levels than Lipitor. In clinical trials, Crestor lowered LDL cholesterol levels by an average of 53%, while Lipitor lowered them by an average of 39%. Additionally, Crestor has been shown to be more effective at lowering triglyceride levels and raising HDL cholesterol levels than Lipitor.

However, Lipitor is available in a generic form, which makes it more affordable than Crestor. According to [1], the patent for Lipitor expired in 2011, which means that other companies can now produce generic versions of the drug. This has led to a significant decrease in the cost of Lipitor, making it a more accessible option for people who need to lower their cholesterol levels.

Both drugs can have side effects, including muscle pain and liver damage. However, according to [3], Crestor has a higher risk of causing muscle pain and damage than Lipitor. It is important to talk to a doctor about the potential risks and benefits of each drug before starting treatment.

In conclusion, while both Lipitor and Crestor are used to lower cholesterol levels, there are some differences between the two drugs. Crestor is more effective at lowering LDL cholesterol levels, but Lipitor is more affordable due to the availability of a generic version. Both drugs can have side effects, and it is important to talk to a doctor about the potential risks and benefits of each drug before starting treatment.

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