Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body. While there is no direct evidence that Lipitor can hinder flexibility during yoga, it is known to cause muscle pain and weakness in some patients [2][3]. These side effects are relatively rare and affect less than 5% of people taking the medication [3]. However, muscle pain and weakness can make it more difficult to perform physical activities such as yoga, which require flexibility and strength.

The muscle pain and weakness associated with Lipitor use are thought to be caused by the medication's effect on the body's production of Coenzyme Q10 (CoQ10) [3]. CoQ10 is an important enzyme that helps muscles produce energy. Lipitor can reduce the body's levels of CoQ10, which can lead to muscle pain and weakness. However, taking a CoQ10 supplement may help alleviate these side effects [3].

It is important to note that while Lipitor can cause muscle pain and weakness, it is still an effective medication for lowering cholesterol levels and reducing the risk of heart disease [2]. Patients who experience muscle pain or weakness while taking Lipitor should talk to their doctor about adjusting their dosage or switching to a different medication [3].

In conclusion, while there is no direct evidence that Lipitor can hinder flexibility during yoga, it can cause muscle pain and weakness in some patients. This may make it more difficult to perform physical activities such as yoga, which require flexibility and strength. Patients who experience muscle pain or weakness while taking Lipitor should talk to their doctor about adjusting their dosage or switching to a different medication. Taking a CoQ10 supplement may also help alleviate these side effects [2][3].

Sources:
[2] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[3] https://www.health.harvard.edu/pain/managing-statin-muscle-pain