Based on the available information, there is no specific mention of lipitor dosage adjustment needed for recreational swimmers. Lipitor, also known as atorvastatin, is a medication used to treat high cholesterol and prevent heart disease [1]. The drug's patent information does not include any warnings or precautions related to recreational swimming [2].

However, it is important to note that atorvastatin is primarily metabolized by the liver and excreted by the kidneys [3]. Therefore, any condition or activity that affects liver or kidney function may require a dosage adjustment. Recreational swimming, in general, is not expected to have a significant impact on liver or kidney function.

That being said, patients taking Lipitor should follow their healthcare provider's instructions regarding medication use, including dosage and any necessary adjustments. Factors such as age, weight, liver and kidney function, other medications, and the presence of certain medical conditions can all affect the appropriate dosage of atorvastatin [3].

In summary, based on the available information, there is no specific mention of lipitor dosage adjustment needed for recreational swimmers. However, patients should follow their healthcare provider's instructions regarding medication use, including dosage and any necessary adjustments.

Sources:

* [1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
* [2] <https://tools.acc.org/ascvd-risk-estimator-plus/>
* [3] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1492602/>