Lipitor is a medication that is commonly used to treat high cholesterol levels. According to Drug Patent Watch [1], the active ingredient in Lipitor is atorvastatin calcium. While the medication is generally well-tolerated, it can cause side effects in some individuals. The question of whether Lipitor can cause swim-related side effects is not directly addressed in this source.

However, a study published in the journal Circulation Research [3] suggests that statins, including Lipitor, may increase the risk of muscle injury in athletes who engage in intense exercise. The study found that statins can cause a breakdown of muscle tissue, leading to a condition called rhabdomyolysis. This can cause muscle pain, weakness, and in severe cases, kidney damage. While the study did not specifically address swim-related side effects, it is possible that athletes who swim competitively could be at risk of rhabdomyolysis if they take Lipitor.

Another study published in PubMed [2] investigated the effects of atorvastatin on muscle performance in healthy individuals. The study found that atorvastatin did not significantly affect muscle strength or endurance. However, the study did not specifically address swim-related side effects.

In conclusion, while there is no direct evidence to suggest that Lipitor can cause swim-related side effects, there is some evidence to suggest that it may increase the risk of muscle injury in athletes who engage in intense exercise, including swimming. Individuals who take Lipitor and engage in competitive swimming should be aware of the potential risks and discuss them with their healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubmed.ncbi.nlm.nih.gov/25093910/
[3] https://www.ahajournals.org/doi/full/10.1161/CIRCRESAHA.118.312782.