Lipitor is a brand name for the drug atorvastatin, which is a statin used to lower cholesterol levels and reduce the risk of heart disease [1]. While statins like Lipitor are generally safe and effective for most people, they can cause muscle pain and weakness in some individuals, particularly those who engage in intense physical activity like muscle building athletes [2].

A study published in the Journal of Clinical Lipidology found that muscle symptoms are the most common side effect of statins, with up to 10% of patients experiencing muscle pain, weakness, or cramps [2]. The study also noted that muscle symptoms are more common in patients who are physically active, have a history of muscle problems, or are taking other medications that interact with statins [2].

However, the same study also found that muscle symptoms are usually mild and can be managed by adjusting the dosage of the statin or switching to a different type of statin [2]. In some cases, coenzyme Q10 supplements may also be helpful in reducing muscle pain and weakness caused by statins [3].

In conclusion, while Lipitor can be safe and effective for reducing cholesterol levels, it can cause muscle pain and weakness in some individuals, particularly those who engage in intense physical activity like muscle building athletes. If you are experiencing muscle symptoms while taking Lipitor, it is important to talk to your doctor about adjusting your dosage or switching to a different type of statin. Additionally, coenzyme Q10 supplements may be helpful in reducing muscle pain and weakness caused by statins [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1884475/
[3] https://www.goodrx.com/classes/statins/muscle-pain-statins-how-to-prevent-common-side-effect