Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. It is commonly prescribed to patients with high cholesterol or at risk of developing heart disease. While there is no direct evidence that suggests that Lipitor affects swimming performance, some studies have investigated the effects of statins, including Lipitor, on physical performance.

One study published in the Journal of Clinical Lipidology [2] investigated the effects of statins on physical activity in patients with high cholesterol. The study found that statin use did not significantly affect physical activity levels or fitness in these patients. However, the study did not specifically examine swimming performance.

Another study published in the Journal of Geriatric Cardiology [3] examined the effects of statins on physical performance in older adults. The study found that statin use was associated with a decrease in muscle strength and physical performance in older adults. However, the study did not focus on swimming performance.

In conclusion, there is no direct evidence that suggests that Lipitor affects swimming performance. However, some studies have found that statin use may affect physical performance in certain populations. It is important to consult with a healthcare provider before starting any new medication, including Lipitor, and to discuss any concerns about physical performance or exercise.

Sources:
[2] https://pubmed.ncbi.nlm.nih.gov/25093910/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3779874/