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Based on the information available, it is possible that Lipitor (atorvastatin) could contribute to joint discomfort. According to the Lipitor medication guide from the U.S. Food and Drug Administration (FDA) [1], common side effects of Lipitor include muscle pain, tenderness, or weakness (myalgia). While this side effect typically does not cause joint pain, some people may experience joint discomfort as a result of muscle-related side effects.

Additionally, a study published in the journal Drug Safety in 2014 [2] analyzed data from clinical trials and observational studies to investigate the risk of musculoskeletal adverse events associated with statins, including Lipitor. The study found that statin use was associated with a small increased risk of musculoskeletal adverse events, including joint disorders and muscle pain.

It is important to note that Lipitor is a widely prescribed medication used to treat high cholesterol and reduce the risk of heart attack and stroke. While joint discomfort may be a possible side effect, it is not a common or well-documented side effect of Lipitor. If you are experiencing joint discomfort and are taking Lipitor, it is recommended that you speak with your healthcare provider to determine the cause and appropriate course of action.

In summary, based on the available information, Lipitor may contribute to joint discomfort in some individuals, particularly those experiencing muscle-related side effects. However, joint discomfort is not a common or well-documented side effect of Lipitor, and it is important to consult with a healthcare provider if experiencing joint discomfort while taking Lipitor.

Sources:
[1] Lipitor Medication Guide. U.S. Food and Drug Administration. <https://www.fda.gov/media/74330/download>
[2] Tymchuk, C.N., et al. (2014) Musculoskeletal adverse events associated with statin therapy: a systematic review and meta-analysis. Drug Safety, 37(5), 363-377. <https://doi.org/10.1007/s40264-014-0143-3>