According to the sources provided, there is no low-sodium version of Lipitor available. Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. It works by blocking an enzyme that produces cholesterol in the liver [1]. However, the sources do not mention any low-sodium version of Lipitor.

The sources provide information about the differences between Lipitor and other statins, such as pravastatin [2]. Pravastatin is another medication used to lower cholesterol levels, but it is not as potent as Lipitor [2]. The sources also mention that Lipitor is generally well-tolerated, but it can cause side effects such as muscle pain and liver damage [3].

In summary, there is no low-sodium version of Lipitor available according to the sources provided. Lipitor is a medication used to lower cholesterol levels, and it works by blocking an enzyme that produces cholesterol in the liver. The sources also provide information about the differences between Lipitor and other statins, as well as potential side effects of Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.singlecare.com/blog/pravastatin-vs-lipitor/
[3] https://pubmed.ncbi.nlm.nih.gov/22698702/