Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood by inhibiting the HMG-CoA reductase enzyme, which plays a crucial role in the production of cholesterol in the body [1]. By reducing the production of cholesterol, Lipitor helps the liver to increase the removal of low-density lipoprotein (LDL) or "bad" cholesterol from the bloodstream [1][2].

Lipitor also affects lipid processing by increasing the levels of high-density lipoprotein (HDL) or "good" cholesterol, which helps to remove LDL cholesterol from the bloodstream [1]. Additionally, Lipitor has been shown to reduce triglyceride levels, another type of fat found in the blood that can increase the risk of heart disease [1].

Furthermore, Lipitor has been found to have anti-inflammatory and antioxidant properties, which can help to stabilize plaques in the arteries and reduce the risk of heart attack and stroke [2].

In summary, Lipitor influences lipid processing by inhibiting the production of cholesterol, increasing the removal of LDL cholesterol from the bloodstream, increasing HDL cholesterol levels, reducing triglyceride levels, and having anti-inflammatory and antioxidant properties.

Sources:

[1] "Atorvastatin (Oral Route) Description and Brand Names." Mayo Clinic, Mayo Foundation for Medical Education and Research, 1 Jan. 2022, <https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/description/drg-20065050>.

[2] "Lipitor." DrugPatentWatch, <https://www.drugpatentwatch.com/drugs/lipitor>.