Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body. While there is no direct evidence that suggests Lipitor can negatively impact athletic performance, there are some potential side effects that could indirectly affect athletic performance.

One of the most common side effects of Lipitor is muscle pain or weakness [1]. This could potentially impact athletic performance by making it more difficult to engage in physical activity or causing discomfort during exercise. However, it is important to note that not everyone who takes Lipitor 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 [2]. While this is not a direct impact on athletic performance, it could potentially impact an athlete's overall health and well-being, which could in turn impact their performance.

It is worth noting that there is some evidence to suggest that statins, the class of drugs that Lipitor belongs to, may actually have a positive impact on athletic performance. A study published in the Journal of the American College of Cardiology found that statin use was associated with improved exercise capacity and reduced fatigue in patients with heart failure [3]. However, it is important to note that this study focused specifically on patients with heart failure, and it is unclear whether these findings would apply to athletes without heart failure.

Overall, while there is no direct evidence to suggest that Lipitor can negatively impact athletic performance, there are some potential side effects that could indirectly impact an athlete's ability to perform. It is important for athletes to discuss any concerns they have about medication use with their healthcare provider.

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/