Unfortunately, the sources provided do not provide information on how Lipitor, a medication used to lower cholesterol levels, affects stretching routines. The first source is a database that provides information on drug patents, the second source discusses the impact of stretching before running, and the third source is a research article on exercise-induced muscle damage and recovery. Therefore, there is no direct information on how Lipitor affects stretching routines. However, it is important to note that individuals taking Lipitor or any medication should consult with their healthcare provider before starting or changing their exercise routine to ensure safety and effectiveness.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.reuters.com/article/us-stretches-running/stretches-before-running-have-no-impact-on-injury-idUSTRE71H63U20110218
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/