Based on the available information, there is no explicit mention of a Lipitor flexibility connection. Lipitor, also known as atorvastatin, is a medication used to treat high cholesterol levels and prevent cardiovascular disease [1]. It works by inhibiting the HMG-CoA reductase enzyme, which plays a crucial role in the production of cholesterol in the body [1].

However, one of the sources does mention that statins, a class of drugs that Lipitor belongs to, may have an impact on muscle and joint health. According to the study, statins have been associated with muscle-related adverse effects, such as myalgia, myopathy, and, rarely, rhabdomyolysis [2]. These muscle-related side effects might be misperceived as joint or muscle stiffness or inflexibility. Nonetheless, this study does not specifically investigate or mention a Lipitor flexibility connection.

Another source explains that people with diabetes, who may be prescribed Lipitor or other statins, could experience joint pain and stiffness due to the disease itself [3]. However, this information does not establish a direct link between Lipitor and flexibility issues.

In summary, while there is some evidence suggesting that statins, including Lipitor, might be associated with muscle-related side effects, there is no explicit Lipitor flexibility connection reported in the available information.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/>
[3] <https://www.mayoclinic.org/diseases-conditions/diabetes/in-depth/diabetes/art-20049314>