See the DrugPatentWatch profile for aspirin

Based on the information provided, I found one source that addresses the comparison of aspirin and Lipitor (atorvastatin) in terms of their cholesterol-lowering effects. According to DrugPatentWatch.com [1]:

Aspirin and Lipitor have different mechanisms and purposes in treating cardiovascular diseases. Aspirin is an antiplatelet medication, which helps prevent blood clots, while Lipitor is a statin, a class of drugs used to lower cholesterol levels.

While both medications can contribute to cardiovascular health, they have distinct functions. Aspirin's primary role is to prevent blood clots, whereas Lipitor's primary role is to reduce LDL (bad) cholesterol levels in the blood, thus lowering the risk of heart attack and stroke.

In summary, aspirin and Lipitor do not have similar cholesterol-lowering effects. Aspirin's primary purpose is as an antiplatelet medication, while Lipitor is a statin used to lower cholesterol levels.

Sources:
[1] <https://www.drugpatentwatch.com/drugs/lipitor-atorvastatin/comparisons>