Lipitor is a brand name for atorvastatin, which is a type of medication used to lower cholesterol levels in the body. According to the Drug Patent Watch [1], the drug works by blocking an enzyme that produces cholesterol in the liver. While there are no known interactions between low-sodium foods and Lipitor, it is important to note that consuming grapefruit or grapefruit juice while taking Lipitor can increase the risk of side effects [3]. Grapefruit contains a compound that can interfere with the metabolism of Lipitor, leading to higher levels of the drug in the bloodstream. This can increase the risk of side effects such as muscle pain, liver damage, and kidney failure [3]. However, low-sodium foods do not contain this compound and are generally considered safe to consume while taking Lipitor [2]. It is always recommended to consult with a healthcare provider before making any changes to your diet or medication regimen.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5438352/
[3] https://www.goodrx.com/classes/statins/why-cant-i-have-grapefruit-with-my-statin