Lipitor is a medication used to lower cholesterol levels in the body. While there is no direct evidence to suggest that Lipitor affects swimming performance, it is important to understand how the drug works and its potential side effects.

Lipitor, also known as atorvastatin, works by inhibiting an enzyme in the liver that is responsible for producing cholesterol. By lowering cholesterol levels, the medication can help reduce the risk of heart disease and stroke [1].

A study published in the Journal of Sports Medicine and Physical Fitness investigated the effects of atorvastatin on exercise performance in healthy individuals. The study found that atorvastatin did not significantly affect exercise performance, but did cause a decrease in muscle strength [2].

Another study published in the Journal of Clinical Lipidology found that while atorvastatin was effective in lowering cholesterol levels, it was also associated with an increased risk of muscle damage and kidney problems [3].

In conclusion, while there is no direct evidence to suggest that Lipitor affects swimming performance, it is important to be aware of its potential side effects, including muscle weakness and damage. It is recommended that individuals consult with their healthcare provider before taking Lipitor or any other medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubmed.ncbi.nlm.nih.gov/25093910/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3779874/