Based on the available information, there is no research that directly links Lipitor, a type of statin medication used to treat high cholesterol, to flexibility.

The first source, drugpatentwatch.com, provides information about Lipitor's patent but does not include any research regarding its relationship with flexibility [1]. The second source, a study published in the National Center for Biotechnology Information's PMC database, discusses the effects of statins on vascular health and inflammation but does not mention flexibility [2]. The third source, an article from Stanford Medicine News, explains how statins like Lipitor can improve cardiovascular health by reducing inflammation and plaque buildup in the arteries, but it does not mention flexibility [3].

Therefore, based on the provided sources, there is currently no evidence to suggest a link between Lipitor and flexibility.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7238900/>
[3] <https://med.stanford.edu/news/all-news/2023/05/statins-cardiovascular-vessels.html>