Lipitor is a medication that is primarily used to lower cholesterol levels in the blood [1]. There is no evidence to suggest that Lipitor can improve flexibility. However, there are some studies that have investigated the effects of statins, the class of drugs that Lipitor belongs to, on muscle function and physical performance.

One study published in the Journal of the American Geriatrics Society found that statin use was associated with a decrease in physical performance, including grip strength and walking speed, in older adults [3]. Another study published in the Journal of Cachexia, Sarcopenia and Muscle found that statin use was associated with a decrease in muscle mass and strength in patients with heart failure [2].

While these studies suggest that statins may have a negative impact on muscle function, it is important to note that the benefits of statins in reducing the risk of heart disease and stroke outweigh the potential risks in most cases. It is also important to speak with a healthcare provider before making any changes to medication regimens.

In summary, there is no evidence to suggest that Lipitor can improve flexibility. While some studies have suggested that statins may have a negative impact on muscle function, the benefits of these drugs in reducing the risk of heart disease and stroke outweigh the potential risks in most cases.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/
[3] https://www.health.harvard.edu/blog/switching-to-generic-lipitor-201202064195