Lipitor is a medication used to lower cholesterol levels and reduce the risk of heart disease [1]. There is no evidence that suggests that Lipitor has any direct effect on breathing during yoga. However, yoga has been shown to have multiple benefits, including improving breathing techniques [2]. Deep breathing exercises in yoga can help increase lung capacity and improve respiratory function [3]. Therefore, practicing yoga may be beneficial for individuals taking Lipitor, as it can help improve breathing techniques and overall respiratory health. It is always important to consult with a healthcare professional before starting any new exercise routine or making changes to medication regimens.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.reuters.com/article/us-yoga-benefits/studies-show-yoga-has-multiple-benefits-idINSAT87408420071228
[3] https://www.everydayhealth.com/wellness/possible-health-benefits-of-deep-breathing/