Lipitor, also known as atorvastatin, is a medication that is used to lower cholesterol levels in the body [1]. According to GoodRx, a website that provides information on drug side effects, there is no evidence that Lipitor affects potassium absorption [2].

However, a study published in the Journal of Clinical and Diagnostic Research found that atorvastatin can lead to a decrease in serum potassium levels in patients with type 2 diabetes [3]. The study involved 100 patients with type 2 diabetes who were treated with atorvastatin for six months. The results showed that the patients who received atorvastatin had a significant decrease in serum potassium levels compared to those who did not receive the medication.

It is important to note that the study only looked at patients with type 2 diabetes and that further research is needed to determine if atorvastatin has the same effect on potassium levels in patients without diabetes. Patients taking atorvastatin should talk to their healthcare provider if they have concerns about their potassium levels or if they experience any symptoms of low potassium, such as muscle weakness or cramping [3].

In conclusion, while there is no evidence that Lipitor affects potassium absorption, a study suggests that atorvastatin can lead to a decrease in serum potassium levels in patients with type 2 diabetes. Patients taking atorvastatin should talk to their healthcare provider if they have concerns about their potassium levels [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/drugs/side-effects/these-drugs-can-mess-with-your-potassium
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4357351/