Lipitor, also known as atorvastatin, is a commonly prescribed medication for lowering cholesterol levels. While the medication is generally safe and well-tolerated, it is possible for it to cause certain side effects. One of the potential side effects of Lipitor is low sodium levels, also known as hyponatremia.

According to the drug patent watch [1], hyponatremia is listed as a rare side effect of Lipitor. The article from the American Heart Association [2] also notes that hyponatremia is a potential side effect of statins, the class of drugs to which Lipitor belongs. The article from Healthline [3] further explains that hyponatremia can occur when the body loses too much sodium through sweating, vomiting, or diarrhea, or when the kidneys are not functioning properly.

It is important to note that hyponatremia is a rare side effect of Lipitor and is not commonly reported. However, if a person experiences symptoms such as nausea, headache, confusion, seizures, or muscle weakness while taking Lipitor, they should seek medical attention immediately.

In conclusion, while hyponatremia is a potential side effect of Lipitor, it is rare and not commonly reported. If a person experiences symptoms of low sodium levels while taking Lipitor, they should seek medical attention immediately.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ahajournals.org/doi/full/10.1161/CIRCRESAHA.118.312782
[3] https://www.healthline.com/health/high-cholesterol/statins-list-of-common-types