Lipitor is a brand name for atorvastatin, a medication that is commonly used to lower cholesterol levels in the body. The drug works by inhibiting an enzyme called HMG-CoA reductase, which is involved in the production of cholesterol in the liver [1]. While there is no direct evidence to suggest that Lipitor has a negative impact on athletic performance, there are some potential side effects that could affect an athlete's ability to perform at their best.

One of the most common side effects of Lipitor is muscle pain and weakness, which can occur in up to 10% of patients taking the drug [2]. This could potentially impact an athlete's ability to train and compete at their highest level, particularly if they are experiencing significant muscle pain or weakness. However, it is important to note that not all patients will experience these side effects, and the severity of the symptoms can vary from person to person.

Another potential side effect of Lipitor is an increased risk of developing diabetes, particularly in patients who already have risk factors for the disease [3]. While this may not directly impact athletic performance, it could have long-term health implications for athletes who are taking the drug.

Overall, while there is no direct evidence to suggest that Lipitor has a negative impact on athletic performance, it is important for athletes who are taking the drug to be aware of the potential side effects and to work closely with their healthcare provider to monitor any symptoms that may arise.

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