Lipitor, also known as atorvastatin, is a statin medication commonly prescribed to lower cholesterol levels and reduce the risk of heart disease. It works by inhibiting the enzyme HMG-CoA reductase, which plays a key role in the production of cholesterol in the liver.

Studies have consistently shown that Lipitor is effective in reducing lipid absorption in various ways:

* It decreases the production of low-density lipoprotein (LDL) cholesterol, often referred to as "bad" cholesterol, by an average of 40-60% [1].
* It increases the levels of high-density lipoprotein (HDL) cholesterol, or "good" cholesterol, by a modest amount [2].
* It reduces the production of triglycerides, another type of fat found in the blood, by 20-40% [3].

According to the label of the drug, the reduction of LDL cholesterol was observed in 81% to 91% of patients [4] who took a dose of 10-80 mg of atorvastatin.

While Lipitor has been shown to be effective in reducing lipid absorption and lowering cholesterol levels, it is essential to note that individual results may vary. Patients should consult with their doctor to determine the best treatment plan for their specific needs [5].

References:
[1] DrugPatentWatch.com
[2] pubmed.ncbi.nlm.nih.gov
[3] www.mayoclinic.org
[4] www.fda.gov
[5] medlineplus.gov

Sources:
1. DrugPatentWatch.com
2. pubmed.ncbi.nlm.nih.gov
3. www.mayoclinic.org
4. www.fda.gov
5. medlineplus.gov