Lipitor, also known as atorvastatin, is a medication that is commonly used to lower cholesterol levels in the blood. According to the sources provided, Lipitor has been shown to be effective in reducing cholesterol levels in the majority of patients who take it [2]. It works by blocking the enzyme responsible for producing cholesterol in the liver, which leads to a decrease in the amount of cholesterol that is produced [3].

However, it is important to note that the effectiveness of Lipitor may vary from person to person. The response to the medication can depend on a number of factors, including the individual's age, overall health, and the severity of their cholesterol problem [2]. Additionally, some people may experience side effects while taking Lipitor, such as muscle pain, digestive issues, and liver problems [2][3].

It is important to speak with a healthcare provider to determine if Lipitor is the right medication for you and to discuss any potential risks and benefits. They may also recommend lifestyle changes, such as a healthy diet and regular exercise, in addition to medication to help manage cholesterol levels [2].

In conclusion, Lipitor is an effective medication for lowering cholesterol levels in most patients, but its effectiveness may vary from person to person. It is important to discuss the potential risks and benefits with a healthcare provider before starting treatment.

Sources:
[2] https://medlineplus.gov/druginfo/meds/a600045.html
[3] https://www.medicalnewstoday.com/articles/atorvastatin-oral-tablet
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR