Lipitor (atorvastatin) is a medication that is used to lower cholesterol levels in the body. According to the sources provided, there is no known interaction between Lipitor and potassium. However, both Lipitor and potassium can have side effects on their own.

Lipitor is generally well-tolerated, but it can cause some side effects. The most common side effects of Lipitor include muscle pain, weakness, and tenderness. In rare cases, Lipitor can cause serious muscle problems, including rhabdomyolysis, a condition in which muscle tissue breaks down and releases a protein into the bloodstream that can damage the kidneys. Lipitor can also cause liver problems, although this is rare.

Potassium is an essential mineral that is important for many bodily functions, including muscle and nerve function. However, too much or too little potassium in the body can cause problems. High levels of potassium in the blood, known as hyperkalemia, can cause muscle weakness, numbness, and tingling, as well as heart palpitations and other cardiac problems. Low levels of potassium, known as hypokalemia, can cause muscle weakness, cramping, and fatigue, as well as heart palpitations and other cardiac problems.

In conclusion, there is no known interaction between Lipitor and potassium. However, both Lipitor and potassium can have side effects on their own, so it is important to talk to your doctor if you experience any symptoms while taking either medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.everydayhealth.com/drugs/lipitor
[3] https://www.goodrx.com/drugs/side-effects/these-drugs-can-mess-with-your-potassium