Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the body. While there is no direct information available on whether Lipitor impacts endurance during yoga sessions, the drug's potential side effects and benefits can be examined.

According to DrugPatentWatch [1], Lipitor works by blocking an enzyme that is responsible for producing cholesterol in the liver. The drug has been shown to be effective in reducing LDL (bad) cholesterol levels and preventing heart disease. However, the drug also has potential side effects, including muscle pain, weakness, and fatigue.

A study published in the Journal of the American College of Cardiology [3] found that atorvastatin can improve exercise capacity in patients with heart disease. The study concluded that the drug can increase endurance and reduce fatigue during exercise. However, it is important to note that this study focused on patients with heart disease and not on the general population.

Another study published in the Journal of Clinical Lipidology [2] found that atorvastatin can improve muscle function in patients with high cholesterol levels. The study concluded that the drug can improve muscle strength and reduce muscle damage.

Based on these sources, it is possible that Lipitor could impact endurance during yoga sessions. The drug has been shown to improve exercise capacity and muscle function, which could translate to improved endurance during physical activity. However, the potential side effects of Lipitor, including muscle pain and weakness, could also negatively impact endurance.

Overall, it is important to consult with a healthcare provider before starting any new medication or exercise routine. They can provide personalized recommendations based on an individual's medical history and current health status.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/
[3] https://www.sciencedirect.com/science/article/pii/S0735109709029987