Lipitor is a medication that is commonly used to lower cholesterol levels in the body. According to the sources provided, there is no evidence to suggest that Lipitor causes any side effects during swimming specifically. However, there are some general precautions and side effects associated with taking Lipitor that should be considered.

The first source provided, Drug Patent Watch [1], lists the potential side effects of Lipitor, which include muscle pain, weakness, and tenderness. These side effects can occur in any situation, not just during swimming. The second source, FDA [2], advises individuals taking Lipitor to be cautious when spending time in the sun, as the medication can increase sensitivity to sunlight. This can lead to sunburn or skin rash. However, this is not related to swimming specifically.

The third source, Harvard Health Publishing [3], suggests that individuals who experience muscle pain or weakness while taking Lipitor should consult with their doctor. The article notes that muscle pain can be a side effect of statins, including Lipitor, but it is not a common side effect. The article also provides tips for managing muscle pain while taking Lipitor, such as taking a break from the medication or reducing the dosage.

In summary, there is no evidence to suggest that Lipitor causes any side effects during swimming specifically. However, individuals taking Lipitor should be aware of potential side effects such as muscle pain, weakness, and tenderness. They should also be cautious when spending time in the sun, as the medication can increase sensitivity to sunlight. If muscle pain or weakness occurs while taking Lipitor, individuals should consult with their doctor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.fda.gov/drugs/special-features/sun-and-your-medicine
[3] https://www.health.harvard.edu/pain/managing-statin-muscle-pain