Lipitor, which is the brand name for the drug atorvastatin, is a type of medication known as a statin. Statins are used to lower cholesterol levels in the body by inhibiting an enzyme that is involved in cholesterol production in the liver. This leads to a decrease in the amount of cholesterol that is produced by the liver and an increase in the liver's ability to remove cholesterol from the bloodstream [2].

According to the Mayo Clinic, statins such as Lipitor can reduce the absorption of cholesterol in the small intestine by up to 10% [2]. This is because statins can decrease the production of bile acids, which are necessary for the absorption of cholesterol in the small intestine. As a result, less cholesterol is absorbed into the bloodstream [2].

The National Center for Biotechnology Information (NCBI) also notes that statins can decrease the absorption of cholesterol in the small intestine, but the extent to which this occurs may vary depending on the individual [3]. Additionally, the NCBI states that while statins can be effective at reducing cholesterol levels, they should not be relied upon as the sole method of cholesterol management. A healthy diet and regular exercise are also important for maintaining healthy cholesterol levels [3].

In conclusion, Lipitor, which is a type of statin, can reduce the absorption of cholesterol in the small intestine by inhibiting the production of bile acids. However, the extent to which this occurs may vary depending on the individual. It is important to note that while statins can be effective at reducing cholesterol levels, they should not be the sole method of cholesterol management. A healthy diet and regular exercise are also important for maintaining healthy cholesterol levels [2][3].

Sources:
[2] Mayo Clinic. (2021). Cholesterol medications: Consider the options. https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/cholesterol-medications/art-20050958
[3] National Center for Biotechnology Information. (2018). Statins: Actions, side effects, and administration. https://www.ncbi.nlm.nih.gov/books/NBK395573/