Lipitor is a brand name for the drug atorvastatin, which is a type of medication called a statin. Statins are used to lower cholesterol levels in the blood and reduce the risk of heart disease [3]. According to the sources provided, there is no direct evidence to suggest that Lipitor can interfere with breathing techniques.

However, one study published in the Journal of Clinical and Diagnostic Research found that statins, including atorvastatin, may cause respiratory muscle weakness in some patients [2]. The study concluded that statins should be used with caution in patients with pre-existing respiratory muscle weakness or neuromuscular disorders.

It is important to note that shortness of breath is a known side effect of atorvastatin and other statins [1]. If a patient experiences difficulty breathing while taking Lipitor, they should contact their healthcare provider immediately.

In summary, while there is no direct evidence to suggest that Lipitor can interfere with breathing techniques, patients with pre-existing respiratory muscle weakness or neuromuscular disorders should use statins with caution. If a patient experiences difficulty breathing while taking Lipitor, they should seek medical attention right away.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/
[3] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins