See the DrugPatentWatch profile for lipitor

Based on the information available, Lipitor (atorvastatin) is primarily used for lowering cholesterol levels, not protein levels. Lipitor belongs to a class of drugs called statins, which work by blocking a specific enzyme (HMG-CoA reductase) that your body needs to produce cholesterol [1]. By lowering cholesterol, Lipitor helps prevent heart attacks and stroke [1].

The drug's mechanism of action does not involve direct interaction with proteins. Therefore, it is not expected to decrease protein levels in the body [2].

In summary, based on the available information, Lipitor decreases cholesterol levels but does not have a significant effect on protein levels.

Sources:
[1] "Lipitor." MedlinePlus, U.S. National Library of Medicine, 11 Jan. 2022, medlineplus.gov/druginfo/meds/a601243.html.
[2] "Atorvastatin." DrugPatentWatch, drugpatentwatch.com/drug/atorvastatin.