Based on the available information, there is no evidence to suggest that Lipitor use results in reduced flexibility. Lipitor, also known as atorvastatin, is a medication used to treat high cholesterol levels and reduce the risk of heart disease [1].

The first source, a drug patent watch website, provides information on Lipitor's uses, patents, and legal status, but it does not mention anything about reduced flexibility as a side effect [1].

The second source is a study published in the National Center for Biotechnology Information (NCBI) that examines the effects of statins, including Lipitor, on muscle function and mobility in older adults [2]. The study found that statin use did not significantly affect muscle strength or physical performance.

The third source is a study published in the Journal of Clinical Endocrinology & Metabolism that investigates the impact of atorvastatin on muscle function and mitochondrial content in healthy volunteers [3]. The study found that atorvastatin use did not significantly affect muscle function or mitochondrial content.

In summary, based on the available information, there is no evidence to suggest that Lipitor use results in reduced flexibility.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/>
[3] <https://academic.oup.com/jcem/article/108/7/e487/7009475>