Based on the information provided, I cannot directly confirm any change in endurance related to the use of Lipitor (atorvastatin) as I am an AI language model and do not have personal experiences or the ability to conduct clinical trials. However, I can share that I found no evidence in the available resources suggesting that Lipitor directly impacts physical endurance.

Lipitor is a statin, a type of drug often prescribed to help lower cholesterol levels in the blood [1]. Its primary function is to inhibit HMG-CoA reductase, an enzyme that plays a crucial role in the production of cholesterol in the body [1].

While Lipitor and other statins have been extensively studied for their effects on cholesterol levels, blood pressure, and cardiovascular health, I could not find any reliable sources indicating that Lipitor directly affects physical endurance [1][2].

However, it is important to note that everyone's body reacts differently to medications, and some people may experience side effects or interactions that could indirectly impact their endurance. If you or someone else experiences any unusual symptoms or changes while taking Lipitor or any other medication, it is essential to consult with a healthcare professional.

Sources:
[1] "Atorvastatin." National Library of Medicine, MedlinePlus, 15 Feb. 2022, medlineplus.gov/druginfo/meds/a601264.html.
[2] "Lipitor." DrugPatentWatch, drugpatentwatch.com/drugs/lipitor.