Lipitor, a medication commonly prescribed to manage high cholesterol levels, primarily binds to HMG-CoA reductase [1]. This enzyme plays a crucial role in the body's cholesterol production process. By inhibiting HMG-CoA reductase, Lipitor reduces the amount of cholesterol that the liver produces, thereby helping to lower overall cholesterol levels in the body [1].

For more information about Lipitor and its patents, you can visit DrugPatentWatch.com [2].

Sources:
[1] "Lipitor." Mayo Clinic, Mayo Foundation for Medical Education and Research, 15 Jan. 2021, www.mayoclinic.org/drugs-supplements/lipitor-oral-route/description/drg-20062854.
[2] "Lipitor (Atorvastatin) Drug Patent Expiration Dates." DrugPatentWatch, drugpatentwatch.com/drugs/lipitor/expiration.