The sources provided do not provide any information on how often Lipitor users should do Pilates. However, the sources provide some useful information that can help Lipitor users make informed decisions about Pilates.

Lipitor is a brand name for atorvastatin, a medication used to lower cholesterol levels in the blood [1]. According to Drug Patent Watch, the patent for Lipitor expired in 2011, which means that generic versions of the drug are now available [1].

Pilates is a form of exercise that focuses on strengthening the core muscles, improving flexibility, and promoting overall body balance and control [2]. Everyday Health suggests that Pilates can be a great exercise option for beginners, as it is low-impact and can be modified to accommodate different fitness levels [2].

A study published in the Journal of Physical Therapy Science found that Pilates can be effective in improving balance, flexibility, and core strength in older adults [3]. The study also found that Pilates can be beneficial for individuals with chronic low back pain [3].

In conclusion, the sources provided do not offer any specific guidance on how often Lipitor users should do Pilates. However, Pilates can be a safe and effective exercise option for individuals of all fitness levels, including those taking Lipitor. Lipitor users should consult with their healthcare provider before starting any new exercise program to ensure that it is safe and appropriate for their individual needs.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.everydayhealth.com/fitness/how-to-get-started-with-pilates-an-absolute-beginners-guide/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4679305/