Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], there are no known interactions between Lipitor and joint pain medication. However, statins like Lipitor have been known to cause joint pain in some patients [2][3]. If you are experiencing joint pain while taking Lipitor, it is important to talk to your doctor about your symptoms. They may be able to adjust your medication or prescribe additional medication to manage your joint pain. It is also important to note that joint pain can have many different causes, so it is important to get a proper diagnosis from a healthcare professional before starting any new medication or treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/classes/statins/joint-pain
[3] https://www.brgeneral.org/news-blog/2021/july/is-your-cholesterol-medication-causing-joint-pai/