Lipitor is a medication that is used to lower cholesterol levels in the body [1]. There is no direct evidence that suggests that Lipitor can lower sodium retention. However, a study published in the Journal of Pharmacokinetics and Pharmacodynamics suggested that statins, including Lipitor, may have a beneficial effect on blood pressure by improving endothelial function and reducing inflammation [2]. Additionally, another study published in the European Journal of Clinical Pharmacology found that Lipitor may have a beneficial effect on the cardiovascular system by reducing oxidative stress and improving endothelial function [3]. While these studies do not directly address the question of whether Lipitor can lower sodium retention, they do suggest that the medication may have beneficial effects on cardiovascular health. It is important to note that the use of Lipitor should always be discussed with a healthcare provider, as it may have potential side effects and interactions with other medications [1].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubmed.ncbi.nlm.nih.gov/22698702/
[3] https://link.springer.com/article/10.1007/s00228-020-03006-8