Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. While regular exercise has been shown to have a positive impact on cholesterol levels, it is not recommended to reduce or discontinue the use of Lipitor without consulting a healthcare professional.

A study published in the Journal of Clinical Lipidology [3] found that regular exercise can have a positive effect on cholesterol levels in patients taking statins, such as Lipitor. The study concluded that "exercise training may be an effective adjunct therapy for improving cholesterol levels in statin-treated patients." However, the study also notes that exercise alone may not be enough to achieve optimal cholesterol levels and that medication should not be discontinued without consulting a healthcare professional.

Another study published in the Journal of Lipid Research [2] found that exercise can increase the expression of certain genes related to cholesterol metabolism, which could lead to improved cholesterol levels. However, the study also notes that the effects of exercise on cholesterol levels can vary depending on factors such as age, gender, and baseline cholesterol levels.

While exercise can have a positive impact on cholesterol levels, it is important to note that medication such as Lipitor should not be discontinued or reduced without consulting a healthcare professional. It is also important to maintain a healthy lifestyle, including regular exercise and a balanced diet, to help manage cholesterol levels.

Sources:
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4679305/
[3] https://pubmed.ncbi.nlm.nih.gov/28807461/
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR