Lipitor is a brand name for atorvastatin, which is a medication used to lower cholesterol levels in the blood. There is no direct evidence to suggest that Lipitor affects yoga balance and coordination. However, joint pain and muscle weakness are common side effects of statins, including Lipitor [1]. These side effects can make it challenging to perform physical activities like yoga, which require balance and coordination [2]. A study published in the Journal of Clinical Lipidology found that muscle-related adverse effects, including muscle pain and weakness, were the most common reasons for discontinuing statin therapy [3]. Therefore, if you experience any joint pain or muscle weakness while taking Lipitor, it is advisable to consult your doctor before continuing with yoga or any other physical activity.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.everydayhealth.com/hs/rheumatoid-arthritis-treatment-management/joint-pain-relief-exercise-pictures/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4679305/