Yes, there is a generic version of Lipitor, which is called atorvastatin. According to DrugPatentWatch [1], the patent for Lipitor expired in 2011, allowing for the production of generic versions of the drug. Atorvastatin is a medication used to lower cholesterol levels and reduce the risk of heart disease [2]. It is available in various strengths, including 10 mg, 20 mg, 40 mg, and 80 mg, and can be purchased at a lower cost than the brand-name version of the drug [3]. It is important to note that while atorvastatin is a generic version of Lipitor, it may not be identical in all aspects, such as inactive ingredients or formulation. Patients should consult with their healthcare provider before switching to a generic version of any medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.everydayhealth.com/drugs/lipitor
[3] https://www.goodrx.com/atorvastatin/what-is