Lipitor is a medication used to lower cholesterol levels and reduce the risk of heart disease [3]. According to Everyday Health, Lipitor's common side effects include muscle pain, diarrhea, constipation, and gas [3]. Serious side effects include liver problems, muscle damage, and an increased risk of diabetes [3]. However, there is no mention of Lipitor having any direct effect on potassium levels in the body.

Potassium is an essential mineral that plays a crucial role in many bodily functions, including muscle and nerve function [2]. GoodRx notes that some medications can affect potassium levels in the body, including diuretics, blood pressure medications, and certain antibiotics [2]. However, Lipitor is not mentioned as a medication that can cause changes in potassium levels.

In conclusion, based on the provided sources, there is no evidence to suggest that Lipitor has any direct effect on potassium levels in the body. However, Lipitor does have potential side effects, including muscle pain, diarrhea, constipation, and gas, as well as more serious side effects such as liver problems, muscle damage, and an increased risk of diabetes. It is always important to discuss any potential side effects with a healthcare provider before starting any new medication.

Sources:
[2] GoodRx. "These Drugs Can Mess with Your Potassium." https://www.goodrx.com/drugs/side-effects/these-drugs-can-mess-with-your-potassium
[3] Everyday Health. "Lipitor (Atorvastatin)." https://www.everydayhealth.com/drugs/lipitor